camera: remove redundant and unnecessary includes

Remove unused or already included headers. Sort and format includes
accordind to the "Google C++ Style Guide". Replace C-headers by C++
analog when it's possible.

Test: build
Change-Id: I19fa6abb5bb68e0257c9c933e68f42f92b394ce7
Signed-off-by: Sergii Piatakov <sergii.piatakov@globallogic.com>
diff --git a/modules/camera/3_4/metadata/state.h b/modules/camera/3_4/metadata/state.h
index 13f2ea5..3fd8447 100644
--- a/modules/camera/3_4/metadata/state.h
+++ b/modules/camera/3_4/metadata/state.h
@@ -17,7 +17,7 @@
 #ifndef V4L2_CAMERA_HAL_METADATA_STATE_H_
 #define V4L2_CAMERA_HAL_METADATA_STATE_H_
 
-#include "../common.h"
+#include "common.h"
 #include "metadata_common.h"
 #include "partial_metadata_interface.h"
 #include "state_delegate_interface.h"