Delete code made dead by previous uniform related patches

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Tested-by: Tom Stellard <thomas.stellard@amd.com>

src/mesa/main/shaderapi.c

@@ -47,7 +47,6 @@
 #include "main/shaderobj.h"
 #include "program/program.h"
 #include "program/prog_parameter.h"
-#include "program/prog_uniform.h"
 #include "ralloc.h"
 #include <stdbool.h>
 #include "../glsl/glsl_parser_extras.h"