Misc small cleanups

native/jni/com_android_inputmethod_keyboard_ProximityInfo.h

native/jni/com_android_inputmethod_latin_BinaryDictionary.h

...ve/jni/com_android_inputmethod_latin_DicTraverseSession.h

native/jni/jni_common.h

native/jni/src/correction.cpp

native/jni/src/correction.h

native/jni/src/defines.h

native/jni/src/dic_traverse_wrapper.h

native/jni/src/hash_map_compat.h

native/jni/src/suggest/suggest_interface.h

native/jni/src/unigram_dictionary.cpp

native/jni/src/unigram_dictionary.h

native/jni/src/words_priority_queue.h