Final round of "tw-" -> "tc-" conversions

Part of #764

themes/tiddlywiki/vanilla/base.tid

@@ -434,10 +434,6 @@ button.tc-tag-label, span.tc-tag-label {
 	font-weight: bold;
 }
 
-.tw-open-tiddler-list {
-	<<transform-origin "0% 0%">>
-}
-
 .tc-menu-list-subitem {
 	padding-left: 7px;
 }
@@ -446,11 +442,6 @@ button.tc-tag-label, span.tc-tag-label {
 	position: relative;
 }
 
-.tw-story-spacer {
-	position: absolute;
-	min-height: 100%;
-}
-
 @media (max-width: {{$:/themes/tiddlywiki/vanilla/metrics/sidebarbreakpoint}}) {
 
 	.tc-sidebar-header {
@@ -775,11 +766,6 @@ canvas.tc-edit-bitmapeditor  {
 	margin: 14px 0 14px 0;
 }
 
-.tw-tag-editor-label {
-	display: inline-block;
-	margin-right: 7px;
-}
-
 .tc-remove-tag-button {
 	padding-left: 4px;
 }
@@ -1217,25 +1203,16 @@ canvas.tc-edit-bitmapeditor  {
 	color: <<colour alert-highlight>>;	
 }
 
-.tw-static-alert {
+.tc-static-alert {
 	position: relative;
 }
 
-.tw-static-alert-inner {
+.tc-static-alert-inner {
 	padding: 0 2px 2px 42px;
 	color: <<colour static-alert-foreground>>;
 	position: absolute;
 }
 
-/*
-** Grids
-*/
-
-.tw-grid-frame td {
-	width: 1em;
-	height: 1em;
-}
-
 /*
 ** Control panel
 */