[gnome-shell] st: Remove broken parsing of @media rules

[Florian Müllner <fmuellner src gnome org>]

commit 73776508b30059d5a71ec3dcfe51e23fc1137dd1
Author: Federico Mena Quintero <federico gnome org>
Date:   Mon Dec 2 19:57:08 2019 -0600

    st: Remove broken parsing of @media rules
    
    This code didn't even pay attention to the
    cur_stmt->kind.media_rule->media_list, and unconditonally considered
    each statement in the ->ruleset to be of kind ruleset.  That seems
    broken.
    
    (The theme doesn't use any @media queries, and they are unsupported
    anyway.)
    
    Fixes https://gitlab.gnome.org/GNOME/gnome-shell/issues/1979

 src/st/st-theme.c | 11 +----------
 1 file changed, 1 insertion(+), 10 deletions(-)
---
diff --git a/src/st/st-theme.c b/src/st/st-theme.c
index 00a2c8fb7e..0d2d2eeace 100644
--- a/src/st/st-theme.c
+++ b/src/st/st-theme.c
@@ -858,16 +858,6 @@ add_matched_properties (StTheme      *a_this,
             }
           break;
 
-        case AT_MEDIA_RULE_STMT:
-          if (cur_stmt->kind.media_rule
-              && cur_stmt->kind.media_rule->rulesets
-              && cur_stmt->kind.media_rule->rulesets->kind.ruleset
-              && cur_stmt->kind.media_rule->rulesets->kind.ruleset->sel_list)
-            {
-              sel_list = cur_stmt->kind.media_rule->rulesets->kind.ruleset->sel_list;
-            }
-          break;
-
         case AT_IMPORT_RULE_STMT:
           {
             CRAtImportRule *import_rule = cur_stmt->kind.import_rule;
@@ -908,6 +898,7 @@ add_matched_properties (StTheme      *a_this,
               }
           }
           break;
+        case AT_MEDIA_RULE_STMT:
         case AT_RULE_STMT:
         case AT_PAGE_RULE_STMT:
         case AT_CHARSET_RULE_STMT: