TT#124273 Remove obsolete dbg symbol package transition

This transition has long past, it is safe to remove now.

Change-Id: I7561003264a5e6fe07f987a3aed5e64878d1f392

debian/rules

@@ -50,7 +50,7 @@ override_dh_auto_install:
 		cfg_target=/etc/$(APP_NAME)/
 
 override_dh_strip:
-	dh_strip --dbgsym-migration='$(APP_NAME)-dbg (<= 1:1.6.0-1+0~mr6.0.0.0)'
+	dh_strip
 	# MT#7431 those binaries aren't automatically stripped
 	test -r $(CURDIR)/debian/ngcp-sems-libsems1-dev/usr/include/sems/compat/getarch && \
 	  strip --remove-section=.comment --remove-section=.note --strip-unneeded \