Reland of [DevTools] Show icon in top toolbar when Node target is available

third_party/WebKit/Source/devtools/front_end/sources/threadsSidebarPane.css

Index: third_party/WebKit/Source/devtools/front_end/sources/threadsSidebarPane.css
diff --git a/third_party/WebKit/Source/devtools/front_end/sources/threadsSidebarPane.css b/third_party/WebKit/Source/devtools/front_end/sources/threadsSidebarPane.css
index f4a8d8fde53f2a0aa1a3a8501bcf611308b24e2d..6863de6d1e51d96e409deb30075a156aa94b26e6 100644
--- a/third_party/WebKit/Source/devtools/front_end/sources/threadsSidebarPane.css
+++ b/third_party/WebKit/Source/devtools/front_end/sources/threadsSidebarPane.css
@@ -3,20 +3,6 @@
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
-
-.available-node-targets {
-    height: 22px;
-    display: flex;
-    align-items: center;
-    justify-content: flex-start;
-    padding-left: 20px;
-    border-top: 1px solid #eee;
-    font-style: italic;
-}
-
-.available-node-targets > span {
-    margin-left: 5px;
-}
 
 .thread-item {
     padding: 3px 8px 3px 20px;