Use -fno-inline for debug builds & small cleanups

native/jni/Android.mk

native/jni/src/correction.cpp

native/jni/src/defines.h

native/jni/src/geometry_utils.h

native/jni/src/proximity_info.cpp

native/jni/src/proximity_info_state.cpp

native/jni/src/proximity_info_state.h