refactor: remove unused class.

Author: knightedcodemonkey

src/index.html

@@ -276,7 +276,7 @@ <h2>Component</h2>
                 aria-label="Collapse component panel"
                 title="Collapse component panel"
               >
-                <svg class="editor-tools-gear" viewBox="0 0 24 24" aria-hidden="true">
+                <svg viewBox="0 0 24 24" aria-hidden="true">
                   <path d="m6 9 6 6 6-6"></path>
                 </svg>
                 <span class="panel-collapse-toggle__label">Collapse</span>
@@ -309,7 +309,7 @@ <h2>Component</h2>
                 title="Copy component source"
                 aria-label="Copy component source"
               >
-                <svg class="editor-tools-gear" viewBox="0 0 24 24" aria-hidden="true">
+                <svg viewBox="0 0 24 24" aria-hidden="true">
                   <rect x="9" y="9" width="10" height="10" rx="2"></rect>
                   <path
                     d="M6 15H5a2 2 0 0 1-2-2V5a2 2 0 0 1 2-2h8a2 2 0 0 1 2 2v1"