Don't bind-mount bionic files

Bind-mounting of the bionic files on /bionic/* paths no longer required
as there are direct symlinks from bionic files in /system partition to
the corresponding bionic files in the runtime APEX. e.g.,

/system/lib/libc.so -> /apex/com.android.runtime/lib/bionic/libc.so

Bug: 125549215
Bug: 127499775
Test: m; devices boots
Change-Id: I499df3a629e01680c1e1c8f0f4062efaec2ab277