glx: rename choose_visual(), drop const argument
glx: rename choose_visual(), drop const argument

The function deals with fb (style) configs, thus using "visual"
in the name is misleading. Which in itself had led to the use of
fbconfig_style_tags argument.

Rename the function to reflect what it does and drop the unneeded
argument.

Signed-off-by: Emil Velikov <f20878473f414da183da19ee25c8722cc1d711e4@collabora.com>
Reviewed-by: Marek Olšák <8c7344a1abdb103e79ecfd488098373070c3c70e@amd.com>
Reviewed-by: Ian Romanick <2b237cafb16dc45038e85df6c85e74e6d899eba9@intel.com>

metora/MesaGLSLCompiler,metora/MesaGLSLCompiler,metora/MesaGLSLCompiler