fixed code style, removed unnecessary pragmas

Planner/Global.h

@@ -1,13 +1,10 @@
+#pragma once
+
 #include "String.h"
-#pragma once
+
 String userWorkspace;
-#pragma once
 String packageWorkspace;
-#pragma once
 int maxKernels;
-#pragma once
 int busyKernels;
-#pragma once
 int freeKernels;
-#pragma once
-String dvm_drv;
+String dvm_drv;