gbm: do not (over)link against libglapi.so
gbm: do not (over)link against libglapi.so

The whole of GBM does not rely on even a single symbol from the GL
dispatch library, unsuprisingly. The only need for it comes from the
unresolved symbols in the DRI modules, which are now correctly handled
with Frank's commit.

Cc: "10.5 10.6" <59f39c0db42d4479a46b02d4d2bc11120e37bb44@lists.freedesktop.org>
Signed-off-by: Emil Velikov <4c996f2f093ddd0585a556460b4cc3ba555546ef@gmail.com>

metora/MesaGLSLCompiler,metora/MesaGLSLCompiler,metora/MesaGLSLCompiler