Replaced other occurrences of Objects#toStringHelper with MoreObjects#toStringHelper

--
MOS_MIGRATED_REVID=98383075
diff --git a/src/main/java/com/google/devtools/build/skyframe/BuildingState.java b/src/main/java/com/google/devtools/build/skyframe/BuildingState.java
index 01cbf8f..a1acb5c 100644
--- a/src/main/java/com/google/devtools/build/skyframe/BuildingState.java
+++ b/src/main/java/com/google/devtools/build/skyframe/BuildingState.java
@@ -13,7 +13,7 @@
 // limitations under the License.
 package com.google.devtools.build.skyframe;
 
-import com.google.common.base.Objects;
+import com.google.common.base.MoreObjects;
 import com.google.common.base.Preconditions;
 import com.google.common.collect.ImmutableList;
 import com.google.common.collect.ImmutableSet;
@@ -407,9 +407,8 @@
   }
 
   @Override
-  @SuppressWarnings("deprecation")
   public String toString() {
-    return Objects.toStringHelper(this)  // MoreObjects is not in Guava
+    return MoreObjects.toStringHelper(this)
         .add("evaluating", evaluating)
         .add("dirtyState", dirtyState)
         .add("signaledDeps", signaledDeps)