autoconf: remove unnecessary mkdir during configure

Remove an uneeded mkdir command to create the JAVA/libjafs object
directory, since this directory is automatically created by the
config.status when generating the JAVA/libjafs/Makefile.

Change-Id: Ib02a38c5c23790cb07e5c2433fd4870e8763c3a3
Reviewed-on: https://gerrit.openafs.org/12994
Reviewed-by: Michael Meffie <[email protected]>
Reviewed-by: Benjamin Kaduk <[email protected]>
Tested-by: BuildBot <[email protected]>

Author: meffie

acinclude.m4

@@ -73,7 +73,6 @@ OPENAFS_SWIG
 OPENAFS_TOPDIRS
 OPENAFS_CROSSTOOLS
 OPENAFS_LINT
-OPENAFS_JAVA
 OPENAFS_CRYPT_CHECKS
 OPENAFS_C_STRUCT_LABEL_CHECK
 OPENAFS_DIRENT_CHECKS