Remove erl_interface from makefile template

[ferd]

fixes #2323

[tsloughter]

But shouldn't it be there if its not otp-23?

[garazdawi]

Most nifs/ports to not need to link with ei or erl_interface, so I would argue that if the user needs it she should add it in LIBS.

[ferd]

But shouldn't it be there if its not otp-23?

Yeah though I just assumed that since it's a template we're not gonna break anything from existing projects, so a hard removal there wouldn't be the hardest thing.