Revert "Issue an error/warning when the source field of a rule is not a list of "type name""
Revert "Issue an error/warning when the source field of a rule is not a list of "type name""

This reverts commit 141f534e4dfd5fd1ff0346716a7e9f0bd39fa8a1.

tc3t/qoot,Dr15Jones/root,Dr15Jones/root,kirbyherm/root-r-tools,ffurano/root5,tc3t/qoot,strykejern/TTreeReader,strykejern/TTreeReader,kirbyherm/root-r-tools,strykejern/TTreeReader,kirbyherm/root-r-tools,tc3t/qoot,ffurano/root5,Dr15Jones/root,kirbyherm/root-r-tools,strykejern/TTreeReader,tc3t/qoot,tc3t/qoot,kirbyherm/root-r-tools,Dr15Jones/root,tc3t/qoot,tc3t/qoot,ffurano/root5,Dr15Jones/root,tc3t/qoot,kirbyherm/root-r-tools,Dr15Jones/root,ffurano/root5,strykejern/TTreeReader,kirbyherm/root-r-tools,Dr15Jones/root,ffurano/root5,ffurano/root5,strykejern/TTreeReader,tc3t/qoot,tc3t/qoot,strykejern/TTreeReader,ffurano/root5