Remove redundant deprecation suppressions

See gh-27409

spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/cache/CacheConfigurations.java

@@ -29,7 +29,6 @@ import org.springframework.util.Assert;
  * @author Eddú Meléndez
  * @author Sebastien Deleuze
  */
-@SuppressWarnings("deprecation")
 final class CacheConfigurations {
 
 	private static final Map<CacheType, String> MAPPINGS;

spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/web/servlet/WebMvcProperties.java

@@ -240,7 +240,6 @@ public class WebMvcProperties {
 		return this.pathmatch;
 	}
 
-	@SuppressWarnings("deprecation")
 	public void checkConfiguration() {
 		if (this.getPathmatch().getMatchingStrategy() == MatchingStrategy.PATH_PATTERN_PARSER) {
 			if (this.getPathmatch().isUseSuffixPattern()) {