Fix EGL context detection for non-GLES2-core functions.

Fixes failure of the X Server with glamor using desktop GL on EGL, and
the associated testcase in the tree.  This was clearly just
copy-and-paste failure on my part in
b251e3ae33.

src/dispatch_common.c

@@ -600,7 +600,6 @@ epoxy_get_proc_address(const char *name)
         return glXGetProcAddressARB((const GLubyte *)name);
     } else {
 #if PLATFORM_HAS_EGL
-        if (api.glx_handle && glXGetCurrentContext()) {
         GLenum egl_api = epoxy_egl_get_current_gl_context_api();
 
         switch (egl_api) {
@@ -610,7 +609,6 @@ epoxy_get_proc_address(const char *name)
         case EGL_NONE:
             break;
         }
-        }
 #endif
     }
     errx(1, "Couldn't find current GLX or EGL context.\n");

test/Makefile.am

@@ -63,7 +63,6 @@ TESTS = \
 check_BINARIES = $(EGL_AND_GLX_BIN)
 
 XFAIL_TESTS = \
-        egl_gl \
         egl_and_glx_different_pointers_egl_glx \
 	$()