Replace password to "***" in the debug message

Use regex pattern to replace password to "***" for both env vars and
request body output

Fix bug 1166697

Change-Id: I671ea25cca78b4dea1fbf2e63c89b82912279f2d
Remove unused CONF.pam.url

Change-Id: I77a20d1910063b5cbee601885cd049df86c03752
Merge "Remove unused CONF.pam.url"
Merge "Replace password to "***" in the debug message"