Use is connected flag to know to wrap bloks

Summary:
we need to wrap the bloks layout in a debug variet in order for flipper to work. See this diff for context D45605120

We are now using wether flipper is connected at all which is much more reliable.

Reviewed By: lblasa

Differential Revision: D46854921

fbshipit-source-id: 1b3baef2681ccce50fd452044cd3f740c256b0a9

android/src/main/java/com/facebook/flipper/plugins/uidebugger/UIDebuggerFlipperPlugin.kt

@@ -31,7 +31,6 @@ class UIDebuggerFlipperPlugin(val context: UIDContext) : FlipperPlugin {
 
   @Throws(Exception::class)
   override fun onConnect(connection: FlipperConnection) {
-    hasConnectedPreviously = true
     this.context.connectionRef.connection = connection
     this.context.bitmapPool.makeReady()
 
@@ -65,10 +64,4 @@ class UIDebuggerFlipperPlugin(val context: UIDContext) : FlipperPlugin {
   override fun runInBackground(): Boolean {
     return false
   }
-
-  companion object {
-
-    var hasConnectedPreviously: Boolean = false
-      private set
-  }
 }