biology/hhsuite: Revert commit "Broken on systems where OpenMP isn't …

…enabled"

IT was added by mistake.
The failures on armv7 are due to -march=native.

This reverts commit 0f20e25.

Reported by:	pkubaj@

biology/hhsuite/Makefile

@@ -10,10 +10,6 @@ COMMENT=	Remote protein homology detection suite
 LICENSE=	GPLv3
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
-.if !exists(/usr/include/omp.h)
-BROKEN=		requires OpenMP support that is missing on this architecture
-.endif
-
 LIB_DEPENDS=	libmpi.so:net/openmpi
 
 USES=		compiler:c++11-lang cmake perl5 python shebangfix