Revert "Add NIST PKIX tests to core-tests and knownfailures"

This reverts commit a96f0f8f2a20d6776fdcaf420fe654c4f9f06ae0.

Conflicts:
	JavaLibrary.mk

Change-Id: I2739326cd5ce39edd619f6e9a1f4ab2c7ff64753
Fix build with master

Change-Id: I7b0e06b278a749fd0564f0c99b801564a8572bfc