Polish "Avoid unnecessary pattern compilation in WebFluxTags"

See gh-24147

spring-boot-project/spring-boot-actuator/src/main/java/org/springframework/boot/actuate/metrics/web/reactive/server/WebFluxTags.java

@@ -131,13 +131,6 @@ public final class WebFluxTags {
 		return URI_UNKNOWN;
 	}
 
-	private static String removeTrailingSlash(String text) {
-		if (!StringUtils.hasLength(text)) {
-			return text;
-		}
-		return text.endsWith("/") ? text.substring(0, text.length() - 1) : text;
-	}
-
 	private static String getPathInfo(ServerWebExchange exchange) {
 		String path = exchange.getRequest().getPath().value();
 		String uri = StringUtils.hasText(path) ? path : "/";
@@ -145,6 +138,13 @@ public final class WebFluxTags {
 		return removeTrailingSlash(singleSlashes);
 	}
 
+	private static String removeTrailingSlash(String text) {
+		if (!StringUtils.hasLength(text)) {
+			return text;
+		}
+		return text.endsWith("/") ? text.substring(0, text.length() - 1) : text;
+	}
+
 	/**
 	 * Creates an {@code exception} tag based on the {@link Class#getSimpleName() simple
 	 * name} of the class of the given {@code exception}.