Drop rikkax core

app/build.gradle

@@ -127,7 +127,6 @@ dependencies {
     implementation 'com.takisoft.preferencex:preferencex:1.1.0'
     implementation 'com.gitlab.NekoInverter:yorozuya:723dc867a9'
     implementation 'dev.rikka.rikkax.appcompat:appcompat:1.4.1'
-    implementation 'dev.rikka.rikkax.core:core:1.4.0'
     implementation 'dev.rikka.rikkax.material:material:2.4.0'
     implementation 'dev.rikka.rikkax.preference:simplemenu-preference:1.0.3'
     implementation 'org.ccil.cowan.tagsoup:tagsoup:1.2.1'