mesa: Make _mesa_init_shader_program static

Since a couple commits ago, there is only one caller, and that caller is
in the same file.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

src/mesa/main/shaderobj.c

@@ -235,8 +235,8 @@ _mesa_reference_shader_program(struct gl_context *ctx,
    }
 }
 
-void
-_mesa_init_shader_program(struct gl_shader_program *prog)
+static void
+init_shader_program(struct gl_shader_program *prog)
 {
    prog->Type = GL_SHADER_PROGRAM_MESA;
    prog->RefCount = 1;
@@ -267,7 +267,7 @@ _mesa_new_shader_program(struct gl_context *ctx, GLuint name)
    shProg = rzalloc(NULL, struct gl_shader_program);
    if (shProg) {
       shProg->Name = name;
-      _mesa_init_shader_program(shProg);
+      init_shader_program(shProg);
    }
    return shProg;
 }

src/mesa/main/shaderobj.h

@@ -71,9 +71,6 @@ _mesa_init_shader(struct gl_context *ctx, struct gl_shader *shader);
 extern struct gl_shader *
 _mesa_new_shader(struct gl_context *ctx, GLuint name, GLenum type);
 
-extern void
-_mesa_init_shader_program(struct gl_shader_program *prog);
-
 extern struct gl_shader_program *
 _mesa_lookup_shader_program(struct gl_context *ctx, GLuint name);