Use DaggerCollectors instead of MoreCollectors

Fixes #1740

RELNOTES=Remove a usage of Guava API not available in the '-android' variant.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=295026567

java/dagger/internal/codegen/kotlin/KotlinMetadataUtil.java

@@ -22,7 +22,7 @@
 
 import com.google.common.collect.ImmutableCollection;
 import com.google.common.collect.ImmutableList;
-import com.google.common.collect.MoreCollectors;
+import dagger.internal.codegen.extension.DaggerCollectors;
 import java.lang.annotation.Annotation;
 import javax.inject.Inject;
 import javax.lang.model.element.AnnotationMirror;
@@ -102,7 +102,7 @@ public TypeElement getEnclosedCompanionObject(TypeElement typeElement) {
                 ElementFilter.typesIn(typeElement.getEnclosedElements()).stream()
                     .filter(
                         innerType -> innerType.getSimpleName().contentEquals(companionObjectName))
-                    .collect(MoreCollectors.onlyElement()))
+                    .collect(DaggerCollectors.onlyElement()))
         .get();
   }