glsl: Don't return a value from check_builtin_array_max_size

That last consumer of the return value was changed to not use it by the
previous commit.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

src/glsl/ast.h

@@ -864,7 +864,7 @@ _mesa_ast_array_index_to_hir(void *mem_ctx,
 void
 emit_function(_mesa_glsl_parse_state *state, ir_function *f);
 
-extern bool
+extern void
 check_builtin_array_max_size(const char *name, unsigned size,
                              YYLTYPE loc, struct _mesa_glsl_parse_state *state);