Nuke HAVE_PCH and use only one macro for PCH logic.
This macro is enabled (=1) or disabled (=0) based on --without-pch and
no_pch parameters in premake5
Visual studio does not more override this logic
Differential Revision: https://code.wildfiregames.com/D1380
Reviewed by: @Itms
This was SVN commit r23314.
Expect a 10-25% build time improvement.
Original Patch By: Angen
Reviewed By: Angen
References #5038
Differential Revision: https://code.wildfiregames.com/D1333
This was SVN commit r22303.