After fixing the setting ENABLE_HDFS=false, need 'hdfs' (your linux command not found) is still reported.

[gujincheng]

What is the purpose of the change

After fixing the setting ENABLE_HDFS=false, need 'hdfs' (your linux command not found) is still reported.

Related issues/PRs

Closed #5080

Brief change log

检查hdfs和hadoop cmd移到if [ "$ENABLE_HDFS" == "true" ]; 里

Checklist

• I have read the Contributing Guidelines on pull requests.
• I have explained the need for this PR and the problem it solves
• I have explained the changes or the new features added to this PR
• I have added tests corresponding to this change
• I have updated the documentation to reflect this change
• I have verified that this change is backward compatible (If not, please discuss on the Linkis mailing list first)
• If this is a code change: I have written unit tests to fully verify the new behavior.

[peacewong]

LGTM.