find-provides: removed optimization for empty lists of files

The same reasons as for find-requires:

1. can be buggy in future;
2. give a chance to the methods to generate some special Provides

autodeps/linux.prov.in

@@ -62,11 +62,6 @@ while IFS= read -r f; do
 	printf '%s\n' "$f"
 done >"$tmpdir"/files 3>"$RPM_BUILD_ROOT/.files:$RPM_SUBPACKAGE_NAME"
 
-if ! [ -s "$tmpdir"/files ]; then
-	Info "empty file list, nothing to do"
-	exit 0
-fi
-
 # filter file list through file(1) to append types (dereference symlinks)
 if ! file -L -NF$'\t' -f "$tmpdir"/files >"$tmpdir"/files+types; then
 	sed -n '/\t *ERROR:/p' "$tmpdir"/files+types >&2