5595 libzpool won't build with a studio primary

@@ -50,12 +50,10 @@
 CERRWARN += -_gcc=-Wno-switch
 
 CTFCONVO = $(CTFCONVERT_O)
 CTFMRG = $(CTFMERGE) -L VERSION -o $@ $(OBJS)
 
-debug := CTFCONVO = STRIPSTABS_KEEP_STABS= $(CTFCONVERT_O)
-debug := CTFMRG = STRIPSTABS_KEEP_STABS= $(CTFMERGE) -L VERSION -o $@ $(OBJS)
 debug := COPTFLAG =
 debug := COPTFLAG64 =
 
 ROOTPDIR = $(ROOT)/usr/lib/fm
 ROOTPROG = $(ROOTPDIR)/$(PROG)