libmvec: further unifdef'ing (LIBMVEC_SO_BUILD)

@@ -175,23 +175,19 @@
 LINTFLAGS64     += -errchk=longptr64
 
 CLAGS           += $(LINTERROFF)
 CFLAGS64        += $(LINTERROFF)
 
-ASDEF           += -DLIBMVEC_SO_BUILD
-
 FLTRPATH_sparc          = $$ORIGIN/cpu/$$ISALIST/libmvec_isa.so.1
 FLTRPATH_sparcv9        = $$ORIGIN/../cpu/$$ISALIST/sparcv9/libmvec_isa.so.1
 FLTRPATH_i386           = $$ORIGIN/libmvec/$$HWCAP
 FLTRPATH                = $(FLTRPATH_$(TARGET_ARCH))
 
 sparc_CFLAGS += -_cc=-W0,-xintrinsic
 sparcv9_CFLAGS += -_cc=-W0,-xintrinsic
 CPPFLAGS_i386   += -Dfabs=__fabs
 
-CPPFLAGS        += -DLIBMVEC_SO_BUILD
-
 SRCS_mvec_i386 = \
         ../common/__vsqrtf.c \
         #end
 
 SRCS_mvec_sparc = \