Fully qualify doc link and remove import

Author: emilypgoogle

appcheck/firebase-appcheck-interop/src/main/java/com/google/firebase/appcheck/AppCheckTokenResult.java

@@ -16,7 +16,6 @@
 
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
-import com.google.firebase.appcheck.interop.InteropAppCheckTokenProvider;
 
 /**
  * Class to hold the result emitted by a Firebase App Check service application verification
@@ -34,8 +33,8 @@ public abstract class AppCheckTokenResult {
   public abstract String getToken();
 
   /**
-   * Returns the {@link Exception} if the {@link InteropAppCheckTokenProvider} failed to obtain a
-   * token.
+   * Returns the {@link Exception} if the {@link
+   * com.google.firebase.appcheck.interop.InteropAppCheckTokenProvider} failed to obtain a token.
    */
   @Nullable
   public abstract Exception getError();