fix: removed "Total Memory" metric from stacked Memory Overview graph

Author: cuprumtan

mamonsu/plugins/system/linux/memory.py

@@ -84,10 +84,11 @@ def graphs(self, template, dashboard=False):
         all_items = []
         free_used_items = []
         for item in self.Items:
-            all_items.append({
-                "key": self.right_type(self.key, item[0]),
-                "color": item[3]
-            })
+            if item[0] != "total":
+                all_items.append({
+                    "key": self.right_type(self.key, item[0]),
+                    "color": item[3]
+                })
         # manually build Free/Used graph items to manage the order of graph filled regions
         # used - User-Space
         free_used_items.append({