Improved pom.xml files.

Author: javadev

pom-central.xml

@@ -38,16 +38,6 @@
         <system>GitHub Issues</system>
         <url>https://github.com/javadev/LeetCode-in-Kotlin/issues</url>
     </issueManagement>
-    <pluginRepositories>
-        <pluginRepository>
-            <id>jcenter</id>
-            <name>JCenter</name>
-            <url>https://jcenter.bintray.com/</url>
-            <releases>
-                <enabled>true</enabled>
-            </releases>
-        </pluginRepository>
-    </pluginRepositories>
     <build>
         <sourceDirectory>${project.basedir}/src/main/kotlin</sourceDirectory>
         <testSourceDirectory>${project.basedir}/src/test/kotlin</testSourceDirectory>

pom.xml

@@ -37,16 +37,6 @@
         <system>GitHub Issues</system>
         <url>https://github.com/javadev/LeetCode-in-Kotlin/issues</url>
     </issueManagement>
-    <pluginRepositories>
-        <pluginRepository>
-            <id>jcenter</id>
-            <name>JCenter</name>
-            <url>https://jcenter.bintray.com/</url>
-            <releases>
-                <enabled>true</enabled>
-            </releases>
-        </pluginRepository>
-    </pluginRepositories>
     <build>
         <sourceDirectory>${project.basedir}/src/main/kotlin</sourceDirectory>
         <testSourceDirectory>${project.basedir}/src/test/kotlin</testSourceDirectory>