mesa_glinterop: remove unneeded GLAPI/GLAPIENTRY/APIENTRYP symbols
These come from windows.h, gl.h, glcorearb.h and/or glext.h.
The interop interface is aimed at non-Windows platforms while the macros
are used/derived due to Windows specifics. Thus we can safely remove
them.
Strictly speaking there should be GLXAPIENTRY/EGLAPIENTRY and alike
macros, although a) there is no GLX ones and b) this brings us even
further from decoupling the file from the GLX/EGL header dependency.
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Tested-by: Tom Stellard <thomas.stellard@amd.com>