Remove dead code

src/vs/workbench/browser/parts/activitybar/media/activitybarpart.css

@@ -38,16 +38,6 @@
 	outline: 0 !important; /* activity bar indicates focus custom */
 }
 
-.monaco-workbench .activitybar > .content > .composite-bar > .monaco-action-bar .action-label.toggle-more {
-	mask: url('ellipsis-activity-bar.svg') no-repeat 50% 50%;
-	-webkit-mask: url('ellipsis-activity-bar.svg') no-repeat 50% 50%;
-}
-
-.monaco-workbench .activitybar .global-activity .monaco-action-bar .action-label.update-activity {
-	mask: url('settings-activity-bar.svg') no-repeat 50% 50%;
-	-webkit-mask: url('settings-activity-bar.svg') no-repeat 50% 50%;
-}
-
 .monaco-workbench .activitybar > .content > .composite-bar {
 	margin-bottom: auto;
 }

src/vs/workbench/browser/parts/activitybar/media/ellipsis-activity-bar.svg

-<svg width="24" height="24" viewBox="0 0 24 24" fill="none" xmlns="http://www.w3.org/2000/svg">
-<path d="M6 12C6 12.2967 5.91203 12.5867 5.74721 12.8334C5.58238 13.08 5.34812 13.2723 5.07403 13.3858C4.79994 13.4994 4.49834 13.5291 4.20737 13.4712C3.91639 13.4133 3.64912 13.2704 3.43934 13.0607C3.22956 12.8509 3.0867 12.5836 3.02882 12.2926C2.97094 12.0017 3.00065 11.7001 3.11418 11.426C3.22771 11.1519 3.41997 10.9176 3.66665 10.7528C3.91332 10.588 4.20333 10.5 4.5 10.5C4.89783 10.5 5.27936 10.658 5.56066 10.9393C5.84197 11.2206 6 11.6022 6 12Z" fill="white"/>
-<path d="M13.5 12C13.5 12.2967 13.412 12.5867 13.2472 12.8334C13.0824 13.08 12.8481 13.2723 12.574 13.3858C12.2999 13.4994 11.9983 13.5291 11.7074 13.4712C11.4164 13.4133 11.1491 13.2704 10.9393 13.0607C10.7296 12.8509 10.5867 12.5836 10.5288 12.2926C10.4709 12.0017 10.5006 11.7001 10.6142 11.426C10.7277 11.1519 10.92 10.9176 11.1666 10.7528C11.4133 10.588 11.7033 10.5 12 10.5C12.3978 10.5 12.7794 10.658 13.0607 10.9393C13.342 11.2206 13.5 11.6022 13.5 12Z" fill="white"/>
-<path d="M21 12C21 12.2967 20.912 12.5867 20.7472 12.8334C20.5824 13.08 20.3481 13.2723 20.074 13.3858C19.7999 13.4994 19.4983 13.5291 19.2074 13.4712C18.9164 13.4133 18.6491 13.2704 18.4393 13.0607C18.2296 12.8509 18.0867 12.5836 18.0288 12.2926C17.9709 12.0017 18.0006 11.7001 18.1142 11.426C18.2277 11.1519 18.42 10.9176 18.6666 10.7528C18.9133 10.588 19.2033 10.5 19.5 10.5C19.8978 10.5 20.2794 10.658 20.5607 10.9393C20.842 11.2206 21 11.6022 21 12Z" fill="white"/>
-</svg>

src/vs/workbench/browser/parts/activitybar/media/settings-activity-bar.svg

-<svg width="24" height="24" viewBox="0 0 24 24" fill="none" xmlns="http://www.w3.org/2000/svg">
-<path fill-rule="evenodd" clip-rule="evenodd" d="M14.4198 0L15.2504 4.15289L18.7742 1.80367L22.1963 5.22578L19.8471 8.74964L24 9.58022V14.4198L19.8471 15.2504L22.1963 18.7742L18.7742 22.1963L15.2504 19.8471L14.4198 24H9.5802L8.74962 19.8471L5.22579 22.1963L1.80368 18.7742L4.15291 15.2504L0 14.4198V9.58022L4.1529 8.74964L1.80367 5.2258L5.22578 1.80369L8.74963 4.15292L9.5802 3.68124e-05L14.4198 0ZM18.2347 10.184L17.6927 8.87549L19.9795 5.44529L18.5547 4.02052L15.1245 6.30732L13.816 5.76534L13.0075 1.72278L10.9925 1.7228L10.184 5.76536L8.87549 6.30734L5.4453 4.02055L4.02053 5.44531L6.30734 8.87553L5.7653 10.184L1.72277 10.9926V13.0075L5.7653 13.816L6.30735 15.1245L4.02053 18.5547L5.4453 19.9795L8.87551 17.6927L10.184 18.2347L10.9925 22.2772H13.0075L13.816 18.2347L15.1245 17.6927L18.5547 19.9795L19.9795 18.5547L17.6927 15.1245L18.2347 13.816L22.2772 13.0075V10.9926L18.2347 10.184ZM13.7143 12C13.7143 12.9468 12.9468 13.7143 12 13.7143C11.0532 13.7143 10.2857 12.9468 10.2857 12C10.2857 11.0532 11.0532 10.2857 12 10.2857C12.9468 10.2857 13.7143 11.0532 13.7143 12ZM15.4286 12C15.4286 13.8935 13.8935 15.4286 12 15.4286C10.1065 15.4286 8.57143 13.8935 8.57143 12C8.57143 10.1065 10.1065 8.57143 12 8.57143C13.8935 8.57143 15.4286 10.1065 15.4286 12Z" fill="#F4F4F4"/>
-</svg>