tree da02d803be33a0f3e144b15250716562411db0f9
parent 1d9f64bb0e6ce63fabf226cc83cd5ff0ae92face
author Dimitry Ivanov <dimitry@google.com> 1464287498 -0700
committer Dimitry Ivanov <dimitry@google.com> 1464287498 -0700

Remove symbols which we did not expose before android-23

Even though platform libc for 19 has this symbols, android-21 and 22
do not export them - to preserve forward compatibility they were
removed from android-19:

clearerr_unlocked
feof_unlocked
ferror_unlocked
fileno_unlocked

Bug: http://b/28864994
Change-Id: I3dfd27ee82d8886bf5cf934bd426ef7c2f26ecfd