mesa/st: Remove GLSLVersion clamping

While here, remove itermediate glsl_feature_level variable.

Signed-off-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Signed-off-by: Marek Olšák <marek.olsak@amd.com>

src/mesa/state_tracker/st_extensions.c

@@ -552,7 +552,6 @@ void st_init_extensions(struct pipe_screen *screen,
                         boolean has_lib_dxtc)
 {
    unsigned i;
-   int glsl_feature_level;
    GLboolean *extension_table = (GLboolean *) extensions;
 
    static const struct st_extension_cap_mapping cap_mapping[] = {
@@ -844,12 +843,8 @@ void st_init_extensions(struct pipe_screen *screen,
                           ARRAY_SIZE(vertex_mapping), PIPE_BUFFER,
                           PIPE_BIND_VERTEX_BUFFER);
 
-   /* Figure out GLSL support. */
-   glsl_feature_level = screen->get_param(screen, PIPE_CAP_GLSL_FEATURE_LEVEL);
-
-   consts->GLSLVersion = glsl_feature_level;
-   if (glsl_feature_level >= 410)
-      consts->GLSLVersion = 410;
+   /* Figure out GLSL support and set GLSLVersion to it. */
+   consts->GLSLVersion = screen->get_param(screen, PIPE_CAP_GLSL_FEATURE_LEVEL);
 
    _mesa_override_glsl_version(consts);
 
@@ -858,9 +853,9 @@ void st_init_extensions(struct pipe_screen *screen,
       consts->ForceGLSLVersion = options->force_glsl_version;
    }
 
-   if (glsl_feature_level >= 400)
+   if (consts->GLSLVersion >= 400)
       extensions->ARB_gpu_shader5 = GL_TRUE;
-   if (glsl_feature_level >= 410)
+   if (consts->GLSLVersion >= 410)
       extensions->ARB_shader_precision = GL_TRUE;
 
    /* This extension needs full OpenGL 3.2, but we don't know if that's
@@ -1036,7 +1031,7 @@ void st_init_extensions(struct pipe_screen *screen,
 
    consts->MaxViewports = screen->get_param(screen, PIPE_CAP_MAX_VIEWPORTS);
    if (consts->MaxViewports >= 16) {
-      if (glsl_feature_level >= 400) {
+      if (consts->GLSLVersion >= 400) {
          consts->ViewportBounds.Min = -32768.0;
          consts->ViewportBounds.Max = 32767.0;
       } else {