Cleanup headers

Make TUs and headers self-contained, remove unused headers

Signed-off-by: Daniel Chabrowski <daniel.chabrowski@intel.com>

shared/source/command_stream/thread_arbitration_policy.h

@@ -7,16 +7,15 @@
 
 #pragma once
 
-#include <stdint.h>
-namespace NEO {
-namespace ThreadArbitrationPolicy {
+#include <cstdint>
 
-enum : int32_t {
+namespace NEO {
+
+enum ThreadArbitrationPolicy : int32_t {
     AgeBased = 0,
     RoundRobin = 1,
     RoundRobinAfterDependency = 2,
     NotPresent = -1
 };
 
-} // namespace ThreadArbitrationPolicy
 } // namespace NEO