DevTools: remove unused css in objectValue.css

Review-Url: https://chromiumcodereview.appspot.com/2435153003
Cr-Commit-Position: refs/heads/master@{#426967}

third_party/WebKit/Source/devtools/front_end/components/RemoteObjectPreviewFormatter.js

@@ -154,7 +154,6 @@ WebInspector.RemoteObjectPreviewFormatter.prototype = {
         }
 
         if (type === "object" && subtype === "node" && description) {
-            span.classList.add("object-value-preview-node");
             WebInspector.DOMPresentationUtils.createSpansForNodeTitle(span, description);
             return span;
         }

third_party/WebKit/Source/devtools/front_end/components/objectValue.css

@@ -23,7 +23,8 @@
     background-color: rgba(56, 121, 217, 0.1);
 }
 
-.object-value-function-prefix {
+.object-value-function-prefix,
+.object-value-boolean {
     color: rgb(170, 13, 145);
 }
 
@@ -54,9 +55,6 @@
 .object-value-number {
     color: rgb(28, 0, 207);
 }
-.object-value-boolean {
-    color: rgb(170, 13, 145);
-}
 
 .object-value-string,
 .object-value-regexp,
@@ -85,39 +83,6 @@
     text-decoration: underline;
 }
 
-.object-value-object .section,
-.object-value-promise .section,
-.object-formatted-map .section,
-.object-value-set .section,
-.object-value-iterator .section,
-.object-value-generator .section,
-.object-value-node .section,
-.object-value-typedarray .section,
-.object-value-array .section {
-    position: static;
-}
-
-.object-value-object .section > .header::before,
-.object-value-promise .section > .header::before {
-    margin-top: 0;
-}
-
-
-.object-value-object .properties-tree,
-.object-value-promise .properties-tree,
-.object-value-map .properties-tree,
-.object-value-set .properties-tree,
-.object-value-iterator .properties-tree,
-.object-value-generator .properties-tree,
-.object-value-node .properties-tree {
-    padding-left: 0 !important;
-}
-
-.object-value-preview-node,
-.section .object-value-node {
-    color: rgb(136, 18, 128);
-}
-
 .object-properties-section-custom-section {
     display: inline-flex;
     flex-direction: column;