[xen master] README: Remove old note about the build system's python expectation

[patchbot@xxxxxxx]

commit 932c3c8b4bd5cb7e3a2fe78105a80928307c9858
Author:     Javi Merino <javi.merino@xxxxxxxxx>
AuthorDate: Tue Sep 19 07:30:29 2023 +0100
Commit:     Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
CommitDate: Wed Sep 20 20:53:58 2023 +0100

    README: Remove old note about the build system's python expectation
    
    Changesets 5852ca485263 (build: fix tools/configure in case only python3
    exists) and c8a8645f1efe ("xen/build: Automatically locate a suitable python
    interpreter") cause the build to look for python3, python and python2 in 
that
    order.
    
    Remove the outdated note from the README.
    
    Signed-off-by: Javi Merino <javi.merino@xxxxxxxxx>
    Reviewed-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
---
 README | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/README b/README
index f75fa536d9..a491c8dce5 100644
--- a/README
+++ b/README
@@ -184,13 +184,6 @@ Various tools, such as pygrub, have the following runtime 
dependencies:
           URL:    https://www.python.org/
           Debian: python
 
-Note that the build system expects `python` to be available. If your system
-only has `python2` or `python3` but not `python` (as in Linux From Scratch),
-you will need to create a symlink for it, or specify PYTHON= when invoking
-make, like (note the position of PYTHON= matters):
-
-    # make PYTHON=/usr/bin/python3
-
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 =============================================
 
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