Cleanup: Remove unneeded texture nodes update function

The function was calling update() on the time curve, but there
is no update callback on that node. So, effectively the function
was doing nothing.

source/blender/blenkernel/BKE_node.h

@@ -1220,7 +1220,6 @@ struct TexResult;
 #define TEX_NODE_PROC_MAX 600
 
 /* API */
-int ntreeTexTagAnimated(struct bNodeTree *ntree);
 void ntreeTexCheckCyclics(struct bNodeTree *ntree);
 
 struct bNodeTreeExec *ntreeTexBeginExecTree(struct bNodeTree *ntree);

source/blender/editors/screen/screen_edit.c

@@ -1451,16 +1451,6 @@ void ED_update_for_newframe(Main *bmain, Depsgraph *depsgraph)
   /* composite */
   if (scene->use_nodes && scene->nodetree)
     ntreeCompositTagAnimated(scene->nodetree);
-
-  /* update animated texture nodes */
-  {
-    Tex *tex;
-    for (tex = bmain->textures.first; tex; tex = tex->id.next) {
-      if (tex->use_nodes && tex->nodetree) {
-        ntreeTexTagAnimated(tex->nodetree);
-      }
-    }
-  }
 }
 
 /*

source/blender/nodes/texture/node_texture_tree.c

@@ -175,28 +175,6 @@ void register_node_tree_type_tex(void)
   ntreeTypeAdd(tt);
 }
 
-int ntreeTexTagAnimated(bNodeTree *ntree)
-{
-  bNode *node;
-
-  if (ntree == NULL)
-    return 0;
-
-  for (node = ntree->nodes.first; node; node = node->next) {
-    if (node->type == TEX_NODE_CURVE_TIME) {
-      nodeUpdate(ntree, node);
-      return 1;
-    }
-    else if (node->type == NODE_GROUP) {
-      if (ntreeTexTagAnimated((bNodeTree *)node->id)) {
-        return 1;
-      }
-    }
-  }
-
-  return 0;
-}
-
 bNodeTreeExec *ntreeTexBeginExecTree_internal(bNodeExecContext *context,
                                               bNodeTree *ntree,
                                               bNodeInstanceKey parent_key)