remove a couple of default cases from switches

This cleans up a couple of warnings [-Wcovered-switch-default] from the build by
removing the default case from a couple of switches which are fully covered.
This is generally better as it will help identify when a new item is added to
the enumeration but the use sites are not updated.

llvm-svn: 217376
diff --git a/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServer.cpp b/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServer.cpp
index ffcdd16..99e0fc6 100644
--- a/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServer.cpp
+++ b/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServer.cpp
@@ -699,12 +699,18 @@
         char return_type_code;
         switch (exit_type)
         {
-            case ExitType::eExitTypeExit:   return_type_code = 'W'; break;
-            case ExitType::eExitTypeSignal: return_type_code = 'X'; break;
-            case ExitType::eExitTypeStop:   return_type_code = 'S'; break;
-
+            case ExitType::eExitTypeExit:
+                return_type_code = 'W';
+                break;
+            case ExitType::eExitTypeSignal:
+                return_type_code = 'X';
+                break;
+            case ExitType::eExitTypeStop:
+                return_type_code = 'S';
+                break;
             case ExitType::eExitTypeInvalid:
-            default:                        return_type_code = 'E'; break;
+                return_type_code = 'E';
+                break;
         }
         response.PutChar (return_type_code);