Remove unneeded _RECURSING_PROGS check.

It is definitely not needed after r288158, and is a private variable as well
that should not be checked here.

MFC after:	1 week
Sponsored by:	EMC / Isilon Storage Division

cddl/usr.sbin/dtrace/tests/Makefile.inc1

@@ -4,7 +4,6 @@ TESTGROUP= ${.CURDIR:H:T}/${.CURDIR:T}
 TESTSRC= ${.CURDIR:H:H:H:H:H}/contrib/opensolaris/cmd/dtrace/test/tst/${TESTGROUP}
 TESTSDIR= ${TESTSBASE}/cddl/usr.sbin/dtrace/${TESTGROUP}
 
-.if !defined(_RECURSING_PROGS)
 FILESGROUPS+=	FILES ${TESTGROUP} ${TESTGROUP}EXE
 
 ${TESTGROUP}= ${TESTFILES}
@@ -25,7 +24,6 @@ ${TESTWRAPPER}.sh: ${GENTEST} ${EXCLUDE} ${${TESTGROUP}}
 	sh ${GENTEST} -e ${EXCLUDE} ${TESTGROUP} ${${TESTGROUP}:S/ */ /} > ${.TARGET}
 
 CLEANFILES+=	${TESTWRAPPER}.sh
-.endif # !defined(_RECURSING_PROGS)
 
 .PATH:	${TESTSRC}