Mk/Uses/fortran.mk: revert fa6fe3f

For some reason, net/mpich does not accept FC with F90. It should be
possible to fix it, but I’m afraid that other ports could be affected
too, so it seems better to revert for the moment.

PR:		267502
Reported by:	jfc (at) mit.edu

Mk/Uses/fortran.mk

@@ -18,7 +18,6 @@ _GCC_VER=	${GCC_DEFAULT:S/.//}
 BUILD_DEPENDS+=	gfortran${_GCC_VER}:lang/gcc${_GCC_VER}
 RUN_DEPENDS+=	gfortran${_GCC_VER}:lang/gcc${_GCC_VER}
 F77=		gfortran${_GCC_VER}
-F90=		gfortran${_GCC_VER}
 FC=		gfortran${_GCC_VER}
 FFLAGS+=	-Wl,-rpath=${LOCALBASE}/lib/gcc${_GCC_VER}
 FCFLAGS+=	-Wl,-rpath=${LOCALBASE}/lib/gcc${_GCC_VER}
@@ -29,7 +28,7 @@ IGNORE=		USES=fortran: invalid arguments: ${fortran_ARGS}
 .  endif
 
 USE_BINUTILS=	yes
-CONFIGURE_ENV+=	F77="${F77}" F90="${F90}" FC="${FC}" FFLAGS="${FFLAGS}" FCFLAGS="${FCFLAGS}"
-MAKE_ENV+=	F77="${F77}" F90="${F90}" FC="${FC}" FFLAGS="${FFLAGS}" FCFLAGS="${FCFLAGS}"
+CONFIGURE_ENV+=	F77="${F77}" FC="${FC}" FFLAGS="${FFLAGS}" FCFLAGS="${FCFLAGS}"
+MAKE_ENV+=	F77="${F77}" FC="${FC}" FFLAGS="${FFLAGS}" FCFLAGS="${FCFLAGS}"
 
 .endif