- remove no longer needed and now harmful extcond patch

OBS-URL: https://build.opensuse.org/package/show/Base:System/rpm?expand=0&rev=449

rpm.spec

@@ -75,7 +75,6 @@ Patch12:        localetag.diff
 Patch14:        nameversioncompare.diff
 Patch15:        dbfsync.diff
 Patch16:        dbrointerruptable.diff
-Patch17:        extcond.diff
 Patch18:        refreshtestarch.diff
 Patch20:        waitlock.diff
 Patch21:        suspendlock.diff
@@ -218,7 +217,7 @@ rm -f rpmdb/db.h
 %patch3 -p1
 %patch -P 4
 %patch5 -p1
-%patch       -P 11 -P 12 -P 13 -P 14 -P 15 -P 16 -P 17 -P 18
+%patch       -P 11 -P 12 -P 13 -P 14 -P 15 -P 16       -P 18
 %patch -P 20 -P 21             -P 24 -P 25 -P 26 -P 27 -P 28 -P 29
 %patch -P 30 -P 31 -P 32 -P 33 -P 34 -P 35 -P 36       -P 38
 %patch                   -P 43       -P 45 -P 46 -P 47       -P 49