Removes unnecessary (and unsafe) @weak annotation that is causing cra…

…shes on

iOS.

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=138077107

guava/src/com/google/common/collect/RegularImmutableAsList.java

@@ -18,7 +18,6 @@
 
 import com.google.common.annotations.GwtCompatible;
 import com.google.common.annotations.GwtIncompatible;
-import com.google.j2objc.annotations.Weak;
 
 /**
  * An {@link ImmutableAsList} implementation specialized for when the delegate collection is
@@ -29,7 +28,7 @@
 @GwtCompatible(emulated = true)
 @SuppressWarnings("serial") // uses writeReplace, not default serialization
 class RegularImmutableAsList<E> extends ImmutableAsList<E> {
-  @Weak private final ImmutableCollection<E> delegate;
+  private final ImmutableCollection<E> delegate;
   private final ImmutableList<? extends E> delegateList;
 
   RegularImmutableAsList(ImmutableCollection<E> delegate, ImmutableList<? extends E> delegateList) {