Rationalize logging statements across codebase

This fixes up the following problems:
1. Using string concatenation instead of the formatting variant methods.
2. Logging or swallowing exception messages without logging the exception
   itself (this swallows the stack trace).
3. Unnecessary logging on re-thrown exceptions.
4. Unnecessary use of formatting variant methods when not necessary.
5. Complicated logging statements involving significant processing not being
   wrapped inside of a logging level check.
6. Redundant logging both of an exception itself and its message (this is
   unnecessary duplication).
7. Use of the base Logger class instead of our FormattingLogger class.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=182419837

java/google/registry/tmch/NordnVerifyAction.java

@@ -136,8 +136,8 @@ public final class NordnVerifyAction implements Runnable {
           logger.warning(result.toString());
           break;
         default:
-          logger.warningfmt("LORDN verify task %s: Unexpected outcome: %s",
-              actionLogId, result.toString());
+          logger.warningfmt(
+              "LORDN verify task %s: Unexpected outcome: %s", actionLogId, result.toString());
           break;
       }
     }