Merge "Remove/fix a few small pieces of unused code"

modules/ve-mw/ce/nodes/ve.ce.MWSignatureNode.js

@@ -70,7 +70,8 @@ setInterval( function () {
 			// Do nothing
 		}
 	}
-	liveSignatures = updatedSignatures;
+	// Stop updating signatures that failed once
+	ve.ce.MWSignatureNode.static.liveSignatures = updatedSignatures;
 }, 60 * 1000 );
 
 /* Methods */

modules/ve-mw/dm/ve.dm.MWWikitextSurfaceFragment.js

@@ -32,8 +32,6 @@ ve.dm.MWWikitextSurfaceFragment.prototype.hasMatchingAncestor = function ( type,
 		nodes = this.getSelectedLeafNodes(),
 		all = !!nodes.length;
 
-	nodes = this.getSelectedLeafNodes();
-	all = !!nodes.length;
 	for ( i = 0, len = nodes.length; i < len; i++ ) {
 		text = this.document.data.getText( false, nodes[ i ].getRange() );
 		// TODO: Use a registry to do this matching

modules/ve-mw/ui/widgets/ve.ui.MWAceEditorWidget.js

@@ -280,7 +280,7 @@ ve.ui.MWAceEditorWidget.prototype.selectRange = function ( from, to ) {
 
 		function offsetToPos( offset ) {
 			var row = 0,
-				col = 0,
+				col,
 				pos = 0;
 
 			while ( row < lines.length && pos + lines[ row ].length < offset ) {

modules/ve-mw/ui/widgets/ve.ui.MWCategoryWidget.js

@@ -294,7 +294,7 @@ ve.ui.MWCategoryWidget.prototype.getCategories = function () {
 ve.ui.MWCategoryWidget.prototype.queryCategoryStatus = function ( categoryNames ) {
 	var widget = this,
 		promises = [], index = 0, batchSize = 50,
-		categoryNamesToQuery = [];
+		categoryNamesToQuery;
 
 	// Get rid of any we already know the hidden status of, or have an entry
 	// if normalizedTitles (i.e. have been fetched before)

modules/ve-mw/ui/widgets/ve.ui.MWTemplateTitleInputWidget.js

@@ -85,7 +85,7 @@ ve.ui.MWTemplateTitleInputWidget.prototype.getLookupRequest = function () {
 				redirects = ( response.query && response.query.redirects ) || {},
 				origPages = ( response.query && response.query.pages ) || {},
 				newPages = [],
-				titles = [];
+				titles;
 
 			// Build a new array to replace response.query.pages, ensuring everything goes into
 			// the order defined by the page's index key, instead of whatever random order the