Updated Intent-related log messages from log.error() to log.debug()

Also:
 - Removed leftover template comments.

Change-Id: Iac1346c8d756eaf54c3854776287701c003c87ad
diff --git a/src/main/java/net/onrc/onos/core/intent/runtime/PlanCalcRuntime.java b/src/main/java/net/onrc/onos/core/intent/runtime/PlanCalcRuntime.java
index 6636be2..436edaf 100644
--- a/src/main/java/net/onrc/onos/core/intent/runtime/PlanCalcRuntime.java
+++ b/src/main/java/net/onrc/onos/core/intent/runtime/PlanCalcRuntime.java
@@ -43,7 +43,7 @@
         long step1 = System.nanoTime();
         List<Set<FlowEntry>> plan = buildPhases(flowEntries);
         long step2 = System.nanoTime();
-        log.error("MEASUREMENT: Compute flow entries: {} ns, Build phases: {} ns",
+        log.debug("MEASUREMENT: Compute flow entries: {} ns, Build phases: {} ns",
                 (step1 - start), (step2 - step1));
         return plan;
     }