glsl: remove unrequired forward declaration

This was added in 2548092ad80156a4 although I don't see why as it
was already in the linker.h header.

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

diff --git a/src/compiler/glsl/linker.cpp b/src/compiler/glsl/linker.cpp
index a245a11..9dbb926 100644 (file)
--- a/src/compiler/glsl/linker.cpp
+++ b/src/compiler/glsl/linker.cpp
@@ -82,8 +82,6 @@
 #include "main/enums.h"
 
 
-void linker_error(gl_shader_program *, const char *, ...);
-
 namespace {
 
 /**