Revert "Fix: vendor public libraries are accessible via System.loadLibrary"

This reverts commit cfe38cdb.

The CL 8f712189dfc02285573337e2b4ab17678011db14 in libcore project avoids
the need for adding the new paths in LoadedApk. With the CL, a classloader
does not give up even when loader.findLibrary() has failed due to some
paths are not added to it. Instead, the classloader converts the given
libname into a filename (e.g. foo -> libfoo.so) then calls dlopen()
with the filename. The classloader reports failure only when the dlopen()
call has failed. Therefore, manually adding these paths to the classloader
is no longer needed and thus removed.

Bug: 109720125
Test: System.loadLibrary("adsprpc") is successful in Pixel (because
libadsprpc.so is in Pixel's vendor public lib list)
Test: atest cts/tests/tests/jni

Merged-In: I1970eba7e732728699042a36b89571915ec81451
(cherry picked from commit 37131e1e)
Change-Id: I1970eba7e732728699042a36b89571915ec81451