<improvement>[zstackbuild]: remove deprecated check md5 scripts

Replace check_md5 script by agent_version_generator python2 script

Resolves: ZSTAC-50588
Related: ZSTAC-40368

Change-Id: I7575796377746c646f67776a7a706d6678697361

Author: Wenhao, Zhang

zstackbuild/build.properties

@@ -111,7 +111,6 @@ zstacknetwork.source=${zstack_build_root}/zstack-network
 zsnansibleplaybook.source=${zstack_build_root}/zstack-utility/zstacknetwork
 
 zstackzwatch.source=${zstack_build_root}/zstack-zwatch
-checkmd5.bin.script=${zstack_build_root}/zstack-utility/zstackbuild/scripts/check_md5.sh
 
 zstacksharedblock.source=${zstack_build_root}/zstack-sharedblock
 zsblkansibleplaybook.source=${zstack_build_root}/zstack-utility/zstacksharedblock