depcomp: remove an unused variable

* lib/depcomp ($alnum): This.

Signed-off-by: Stefano Lattarini <stefano.lattarini@gmail.com>

diff --git a/lib/depcomp b/lib/depcomp
index 8cd39b0..cfe0542 100755 (executable)
--- a/lib/depcomp
+++ b/lib/depcomp
@@ -115,7 +115,6 @@ upper=ABCDEFGHIJKLMNOPQRSTUVWXYZ
 lower=abcdefghijklmnopqrstuvwxyz
 digits=0123456789
 alpha=${upper}${lower}
-alnum=${alpha}${digits}
 
 if test -z "$depmode" || test -z "$source" || test -z "$object"; then
   echo "depcomp: Variables source, object and depmode must be set" 1>&2