Stop linking in verbs stuff in oshmem/mca/memheap/base now that we have the sshmem framework.

Refs trac:4261

This commit was SVN r30858.

The following Trac tickets were found above:
  Ticket 4261 --> https://svn.open-mpi.org/trac/ompi/ticket/4261

oshmem/mca/memheap/base/Makefile.am

@@ -22,5 +22,4 @@ libmca_memheap_la_SOURCES += \
 	base/memheap_base_register.c \
 	base/memheap_base_mkey.c
 
-libmca_memheap_la_LDFLAGS += -module -avoid-version $(oshmem_verbs_LDFLAGS) 
-libmca_memheap_la_LIBADD  += $(oshmem_verbs_LIBS)
+libmca_memheap_la_LDFLAGS += -module -avoid-version