mesa: Remove unused assyntax.h and update related files

Also remove unused .gl-rules::changes in test-source-dep.yml

Signed-off-by: Yonggang Luo <luoyonggang@gmail.com>
Acked-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/36635>

.gitlab-ci/test-source-dep.yml

@@ -174,7 +174,6 @@
         - src/mesa/swrast/**/*
         - src/mesa/swrast_setup/**/*
         - src/mesa/vbo/**/*
-        - src/mesa/x86/**/*
         - src/mesa/x86-64/**/*
       when: on_success
     - !reference [.gallium-core-rules, rules]

docs/libGL.txt

@@ -85,10 +85,6 @@ This section describes the requirements to make an XFree86 4.0
 libGL.so-compatible hardware driver.  It is not intended for end
 users of libGL.so.
 
-The gl_x86_asm.py and assyntax.h files implement x86-optimized dispatch
-of GL functions. They are not required; C-based dispatch can be used
-instead, with a slight performance penalty.
-
 
 
 Driver loading and binding

src/mesa/meson.build

@@ -385,11 +385,6 @@ files_libmesa = files(
 )
 
 inc_libmesa_asm = []
-if with_asm_arch == 'x86'
-  files_libmesa += files(
-    'x86/assyntax.h',
-  )
-endif
 
 format_fallback_c = custom_target(
   'format_fallback.c',