wined3d: Only set GL_SHADER_OPERATION_NV to GL_NONE for mapped stages.

dlls/wined3d/state.c

@@ -1674,10 +1674,10 @@ static void tex_colorop(DWORD state, IWineD3DStateBlockImpl *stateblock, WineD3D
                 glDisable(GL_TEXTURE_CUBE_MAP_ARB);
                 checkGLcall("glDisable(GL_TEXTURE_CUBE_MAP_ARB)");
             }
-        }
             if(GL_SUPPORT(NV_TEXTURE_SHADER2)) {
                 glTexEnvi(GL_TEXTURE_SHADER_NV, GL_SHADER_OPERATION_NV, GL_NONE);
             }
+        }
         /* All done */
         return;
     }