[DevTools] Simplify getting back to default network order.

Source/devtools/front_end/network/networkLogView.css

Index: Source/devtools/front_end/network/networkLogView.css
diff --git a/Source/devtools/front_end/network/networkLogView.css b/Source/devtools/front_end/network/networkLogView.css
index af1b3d5e3f082628eb0a52fcb4b00b407cbd3e6e..f5ef780301197ed4122cc61e72f5c0251a0393d4 100644
--- a/Source/devtools/front_end/network/networkLogView.css
+++ b/Source/devtools/front_end/network/networkLogView.css
@@ -94,19 +94,11 @@
     top: 23px;
 }
 
-.network-log-grid.data-grid select {
-    -webkit-appearance: none;
-    background-color: transparent;
-    border: none;
-    width: 100%;
-    color: inherit;
-}
-
 .network-log-grid.data-grid .name-column {
     cursor: pointer;
 }
 
-.network-log-grid.data-grid .timeline-column {
+.network-log-grid.data-grid td.timeline-column {
     padding: 1px 0;
 }