[Java] Upgrade to sevntu-checks:1.24.1.

Author: mjpt777

build.gradle

@@ -111,9 +111,6 @@ subprojects {
     repositories {
         mavenLocal()
         mavenCentral()
-        maven {
-            url "http://sevntu-checkstyle.github.com/sevntu.checkstyle/maven2"
-        }
     }
 
     jar.enabled = true
@@ -122,7 +119,7 @@ subprojects {
 
     dependencies {
         checkstyle 'com.puppycrawl.tools:checkstyle:8.0'
-        checkstyle 'com.github.sevntu.checkstyle:sevntu-checks:1.23.1'
+        checkstyle 'com.github.sevntu-checkstyle:sevntu-checks:1.24.1'
 
         testCompile 'org.hamcrest:hamcrest-all:1.3'
         testCompile 'junit:junit:4.12'