Remove lib32 versions of libl.

Reviewed by:	imp, emaste
Fixes:		eb61f7bd Stop building libl and liby
Sponsored by:	The University of Cambridge, Google Inc.
Differential Revision:	https://reviews.freebsd.org/D33851

ObsoleteFiles.inc

@@ -5421,6 +5421,11 @@ OLD_FILES+=usr/share/man/man9/crypto_find_driver.9.gz
 OLD_FILES+=usr/share/man/man9/crypto_register.9.gz
 OLD_FILES+=usr/share/man/man9/crypto_unregister.9.gz
+# 20200326: compat libs for libl are no longer built
+OLD_FILES+=usr/lib32/libfl.a
+OLD_FILES+=usr/lib32/libl.a
+OLD_FILES+=usr/lib32/libln.a
+
 # 20200323: INTERNALLIB don't install headers anymore
 OLD_FILES+=usr/include/libelftc.h
 OLD_FILES+=usr/include/libifconfig.h