DevTools: refactoring connection creation, removing a couple of dead code branches.

Source/devtools/front_end/inspector.css

Index: Source/devtools/front_end/inspector.css
diff --git a/Source/devtools/front_end/inspector.css b/Source/devtools/front_end/inspector.css
index e67f5e83930546fc044687805329b1b8ef00deac..60404211a976528a7c3f7e119470a26c93c73e0c 100644
--- a/Source/devtools/front_end/inspector.css
+++ b/Source/devtools/front_end/inspector.css
@@ -427,10 +427,6 @@ body.undocked .toolbar-item .close-button {
     display: none;
 }
 
-body.remote .toolbar-item .close-button {
-    display: none;
-}
-
 .panel-status-bar {
     border-top: none;
     display: flex;
@@ -711,10 +707,6 @@ div.resizer-widget {
     -webkit-mask-position: -160px -24px;
 }
 
-body.remote .dock-status-bar-item {
-    display: none;
-}
-
 .console-status-bar-item .glyph {
     -webkit-mask-position: -64px -24px;
 }