Remove obsolete code

Author: sbrannen

spring-web/src/main/java/org/springframework/web/util/UriComponentsBuilder.java

@@ -74,8 +74,6 @@ public class UriComponentsBuilder implements UriBuilder, Cloneable {
 
 	private static final String SCHEME_PATTERN = "([^:/?#\\\\]+):";
 
-	private static final String HTTP_PATTERN = "(?i)(http|https):";
-
 	private static final String USERINFO_PATTERN = "([^/?#\\\\]*)";
 
 	private static final String HOST_IPV4_PATTERN = "[^/?#:\\\\]*";