Revert "Tweak linux_glibc properties for musl builds in external/python/cpython3"

This reverts commit 7020415b80a2fd3fa734f0984e9936769869aed8.

Reason for revert: broke musl build with duplicate srcs

Change-Id: I38bf83595c61a5324e736ee8c0cf47ce9212b930
2 files changed