Disable slf4j backend
This MR resolves 1061025.
Changes:
- disable slf4j backend to resolve circular dependency.
Testing:
- rebuilt httpcomonents-client[2] and libslf4j-java[3] against updated libcommons-logging-java
[1] https://launchpad.net/~vpa1977/+archive/ubuntu/plusone-rebuild/+sourcepub/15840974/+listing-archive-extra [2] https://launchpad.net/~vpa1977/+archive/ubuntu/plusone-rebuild/+sourcepub/15840973/+listing-archive-extra