Removed NMS-Repo and GitHub CI

.github/workflows/maven.yml

@@ -1,25 +0,0 @@
-# This workflow will build a Java project with Maven
-# For more information see: https://help.github.com/actions/language-and-framework-guides/building-and-testing-java-with-maven
-
-name: Java CI with Maven
-
-on:
-  push:
-    branches: [ main ]
-  pull_request:
-    branches: [ main ]
-
-jobs:
-  build:
-
-    runs-on: ubuntu-latest
-
-    steps:
-    - uses: actions/checkout@v2
-    - name: Set up JDK 17
-      uses: actions/setup-java@v2
-      with:
-        java-version: '17'
-        distribution: 'adopt'
-    - name: Build with Maven
-      run: mvn -B package --file pom.xml

pom.xml

@@ -14,10 +14,6 @@
     </properties>
 
     <repositories>
-        <repository>
-            <id>nms-repo</id>
-            <url>https://repo.codemc.org/repository/nms/</url>
-        </repository>
         <repository>
             <id>spigot-repo</id>
             <url>https://hub.spigotmc.org/nexus/content/repositories/snapshots/</url>