libglamoregl: remove -I$(top_srcdir)/src

Automake always provide -I. It is at the beginning of the list of compiler
options.

Not needed either to find glamor_egl.c source.

Signed-off-by: Gaetan Nadon <memsize@videotron.ca>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>

glamor/Makefile.am

@@ -59,11 +59,10 @@ module_LTLIBRARIES = $(LIBGLAMOREGL)
 libglamoregl_la_DEPENDENCIES = libglamor.la
 libglamoregl_la_LDFLAGS = -avoid-version -module
 libglamoregl_la_LIBADD = $(EGL_LIBS) $(GLX_SYS_LIBS) $(GBM_LIBS) libglamor.la
-libglamoregl_la_SOURCES = glamor_eglmodule.c $(top_srcdir)/src/glamor_egl.c
+libglamoregl_la_SOURCES = glamor_eglmodule.c glamor_egl.c
 libglamoregl_la_CFLAGS = \
 	$(AM_CFLAGS) \
 	$(GLX_DEFINES) \
-	-I$(top_srcdir)/src \
 	$(LIBDRM_CFLAGS) \
 	$(EGL_CFLAGS) \
 	$(GBM_CFLAGS)