Remove tterrag maven

Author: embeddedt

buildSrc/src/main/groovy/modernfix.common-conventions.gradle

@@ -124,14 +124,4 @@ repositories {
             includeGroup "com.terraformersmc"
         }
     }
-    exclusiveContent {
-        forRepository {
-            maven {
-                url "https://maven.tterrag.com"
-            }
-        }
-        filter {
-            includeGroup "team.chisel.ctm"
-        }
-    }
 }