DevTools: CSS cleanup.

Source/devtools/front_end/inspectorStyle.css

Index: Source/devtools/front_end/inspectorStyle.css
diff --git a/Source/devtools/front_end/inspectorStyle.css b/Source/devtools/front_end/inspectorStyle.css
index 0c550300ce8ecb7aa936ed41846b77637cb2618e..6136389f294442c11f2d515e5517213338aa6afa 100644
--- a/Source/devtools/front_end/inspectorStyle.css
+++ b/Source/devtools/front_end/inspectorStyle.css
@@ -1796,10 +1796,6 @@ li.editing-sub-part .delete-button {
     background-image: linear-gradient(to bottom, rgb(194, 194, 194), rgb(239, 239, 239));
 }
 
-#console-messages.console-filter-top {
-    margin-top: 23px;
-}
-
 .console-warning-level.repeated-message,
 .console-error-level.repeated-message,
 .console-log-level.repeated-message,
@@ -1866,7 +1862,7 @@ li.editing-sub-part .delete-button {
     padding-left: 37px;
 }
 
-.sidebar-tree.some-expandable:not(.hide-disclosure-buttons) > .sidebar-tree-item:not(.parent) .icon {
+.sidebar-tree.some-expandable > .sidebar-tree-item:not(.parent) .icon {
     margin-left: 16px;
 }
 
@@ -2780,4 +2776,4 @@ body.inactive select.chrome-select,
     box-shadow: 0 1px 0 rgba(80, 80, 80, 0.08),
     inset 0 1px 2px rgba(255, 255, 255, 0.75);
     color: #aaa;
-}
+}