[FLINK-15605][State][TTL] Remove deprecated in 1.9 StateTtlConfig.Tim…

…eCharacteristic

1.10 follow-up for FLINK-11825

flink-core/src/main/java/org/apache/flink/api/common/state/StateTtlConfig.java

@@ -77,17 +77,6 @@ public enum StateVisibility {
 		NeverReturnExpired
 	}
 
-	/**
-	 * This option configures time scale to use for ttl.
-	 *
-	 * @deprecated will be removed in a future version in favor of {@link TtlTimeCharacteristic}
-	 */
-	@Deprecated
-	public enum TimeCharacteristic {
-		/** Processing time, see also <code>TimeCharacteristic.ProcessingTime</code>. */
-		ProcessingTime
-	}
-
 	/**
 	 * This option configures time scale to use for ttl.
 	 */
@@ -219,22 +208,6 @@ public Builder neverReturnExpired() {
 			return setStateVisibility(StateVisibility.NeverReturnExpired);
 		}
 
-		/**
-		 * Sets the time characteristic.
-		 *
-		 * @param timeCharacteristic The time characteristic configures time scale to use for ttl.
-		 *
-		 * @deprecated will be removed in a future version in favor of {@link #setTtlTimeCharacteristic}
-		 */
-		@Deprecated
-		@Nonnull
-		public Builder setTimeCharacteristic(@Nonnull TimeCharacteristic timeCharacteristic) {
-			checkArgument(timeCharacteristic.equals(TimeCharacteristic.ProcessingTime),
-				"Only support TimeCharacteristic.ProcessingTime, this function has replaced by setTtlTimeCharacteristic.");
-			setTtlTimeCharacteristic(TtlTimeCharacteristic.ProcessingTime);
-			return this;
-		}
-
 		/**
 		 * Sets the time characteristic.
 		 *