[UNIKRAFT PATCH 8/8] Correct license headers introduced by UPB

[Simon Kuenzer <simon.kuenzer@xxxxxxxxx>]

This commit removes the additional clause
"THIS HEADER MAY NOT BE EXTRACTED OR MODIFIED IN ANY WAY"
from BSD license headers that got introduced by mistake
Roxana Nicolescu with the following commit:
 cd1873671 - lib/ukblkdev: Request interface
 9065c15ef - plat/xen/drivers/blk: Register blkfront with libukblkdev
 30f42955f - plat/xen/drivers: Introduce blkfront driver skeleton
 620425c02 - lib/ukblkdev: Blkdev registration
 bff097cd2 - plat/xen/drivers/blk: Init Xenbus Device

On the one hand, this additional clause is redundant because
the BSD license already states that it must remain and the
copyright notice must be kept.
On the other hand, the clause freezes the file header
and prohibits future contributors from extending the
copyright notice for their contributions. This additional
clause is not part of the official BSD 3-clause.

The original author consents to the change with a `Signed-off-by`
or `Reviewed-by` tag to this commit.

Signed-off-by: Simon Kuenzer <simon.kuenzer@xxxxxxxxx>
---
 lib/ukblkdev/blkdev.c                   | 2 --
 lib/ukblkdev/include/uk/blkdev.h        | 2 --
 lib/ukblkdev/include/uk/blkdev_core.h   | 2 --
 lib/ukblkdev/include/uk/blkdev_driver.h | 2 --
 lib/ukblkdev/include/uk/blkreq.h        | 2 --
 plat/xen/drivers/blk/blkfront.c         | 2 --
 plat/xen/drivers/blk/blkfront.h         | 2 --
 plat/xen/drivers/blk/blkfront_xb.h      | 2 --
 plat/xen/drivers/blk/blkfront_xs.c      | 2 --
 9 files changed, 18 deletions(-)

diff --git a/lib/ukblkdev/blkdev.c b/lib/ukblkdev/blkdev.c
index 9cafa0c42..bac30a724 100644
--- a/lib/ukblkdev/blkdev.c
+++ b/lib/ukblkdev/blkdev.c
@@ -29,8 +29,6 @@
  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  * POSSIBILITY OF SUCH DAMAGE.
- *
- * THIS HEADER MAY NOT BE EXTRACTED OR MODIFIED IN ANY WAY.
  */
 /* This is derived from uknetdev because of consistency reasons */
 #define _GNU_SOURCE /* for asprintf() */
diff --git a/lib/ukblkdev/include/uk/blkdev.h b/lib/ukblkdev/include/uk/blkdev.h
index 3e42eb98a..a6c0f3b9b 100644
--- a/lib/ukblkdev/include/uk/blkdev.h
+++ b/lib/ukblkdev/include/uk/blkdev.h
@@ -29,8 +29,6 @@
  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  * POSSIBILITY OF SUCH DAMAGE.
- *
- * THIS HEADER MAY NOT BE EXTRACTED OR MODIFIED IN ANY WAY.
  */
 /* This is derived from uknetdev because of consistency reasons */
 #ifndef __UK_BLKDEV__
diff --git a/lib/ukblkdev/include/uk/blkdev_core.h 
b/lib/ukblkdev/include/uk/blkdev_core.h
index 11a642c40..360af9f95 100644
--- a/lib/ukblkdev/include/uk/blkdev_core.h
+++ b/lib/ukblkdev/include/uk/blkdev_core.h
@@ -29,8 +29,6 @@
  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  * POSSIBILITY OF SUCH DAMAGE.
- *
- * THIS HEADER MAY NOT BE EXTRACTED OR MODIFIED IN ANY WAY.
  */
 /* This is derived from uknetdev because of consistency reasons */
 #ifndef __UK_BLKDEV_CORE__
diff --git a/lib/ukblkdev/include/uk/blkdev_driver.h 
b/lib/ukblkdev/include/uk/blkdev_driver.h
index cb1b3ba39..27c928feb 100644
--- a/lib/ukblkdev/include/uk/blkdev_driver.h
+++ b/lib/ukblkdev/include/uk/blkdev_driver.h
@@ -29,8 +29,6 @@
  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  * POSSIBILITY OF SUCH DAMAGE.
- *
- * THIS HEADER MAY NOT BE EXTRACTED OR MODIFIED IN ANY WAY.
  */
 /* This is derived from uknetdev because of consistency reasons */
 #ifndef __UK_BLKDEV_DRIVER__
diff --git a/lib/ukblkdev/include/uk/blkreq.h b/lib/ukblkdev/include/uk/blkreq.h
index ae1a31ed5..ec8d744ea 100644
--- a/lib/ukblkdev/include/uk/blkreq.h
+++ b/lib/ukblkdev/include/uk/blkreq.h
@@ -29,8 +29,6 @@
  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  * POSSIBILITY OF SUCH DAMAGE.
- *
- * THIS HEADER MAY NOT BE EXTRACTED OR MODIFIED IN ANY WAY.
  */
 #ifndef UK_BLKREQ_H_
 #define UK_BLKREQ_H_
diff --git a/plat/xen/drivers/blk/blkfront.c b/plat/xen/drivers/blk/blkfront.c
index a41373409..558526838 100644
--- a/plat/xen/drivers/blk/blkfront.c
+++ b/plat/xen/drivers/blk/blkfront.c
@@ -29,8 +29,6 @@
  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  * POSSIBILITY OF SUCH DAMAGE.
- *
- * THIS HEADER MAY NOT BE EXTRACTED OR MODIFIED IN ANY WAY.
  */
 #include <inttypes.h>
 #include <string.h>
diff --git a/plat/xen/drivers/blk/blkfront.h b/plat/xen/drivers/blk/blkfront.h
index 40622ce9c..97f2c68e0 100644
--- a/plat/xen/drivers/blk/blkfront.h
+++ b/plat/xen/drivers/blk/blkfront.h
@@ -29,8 +29,6 @@
  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  * POSSIBILITY OF SUCH DAMAGE.
- *
- * THIS HEADER MAY NOT BE EXTRACTED OR MODIFIED IN ANY WAY.
  */
 #ifndef __BLKFRONT_H__
 #define __BLKFRONT_H__
diff --git a/plat/xen/drivers/blk/blkfront_xb.h 
b/plat/xen/drivers/blk/blkfront_xb.h
index d1b5f1ea8..a4b14acd6 100644
--- a/plat/xen/drivers/blk/blkfront_xb.h
+++ b/plat/xen/drivers/blk/blkfront_xb.h
@@ -29,8 +29,6 @@
  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  * POSSIBILITY OF SUCH DAMAGE.
- *
- * THIS HEADER MAY NOT BE EXTRACTED OR MODIFIED IN ANY WAY.
  */
 #ifndef __BLKFRONT_XB_H__
 #define __BLKFRONT_XB_H__
diff --git a/plat/xen/drivers/blk/blkfront_xs.c 
b/plat/xen/drivers/blk/blkfront_xs.c
index f10ca66a1..890281195 100644
--- a/plat/xen/drivers/blk/blkfront_xs.c
+++ b/plat/xen/drivers/blk/blkfront_xs.c
@@ -29,8 +29,6 @@
  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  * POSSIBILITY OF SUCH DAMAGE.
- *
- * THIS HEADER MAY NOT BE EXTRACTED OR MODIFIED IN ANY WAY.
  */
 #define _GNU_SOURCE /* for asprintf() */
 #include <inttypes.h>
-- 
2.20.1