Address various redundant constructs

core/common/src/main/kotlin/eu/kanade/tachiyomi/network/interceptor/WebViewInterceptor.kt

@@ -15,7 +15,6 @@ import okhttp3.Headers
 import okhttp3.Interceptor
 import okhttp3.Request
 import okhttp3.Response
-import tachiyomi.core.common.util.lang.launchUI
 import tachiyomi.i18n.MR
 import java.util.Locale
 import java.util.concurrent.CountDownLatch

core/common/src/main/kotlin/tachiyomi/core/common/util/lang/CoroutinesExtensions.kt

@@ -1,10 +1,7 @@
 package tachiyomi.core.common.util.lang
 
 import kotlinx.coroutines.CoroutineScope
-import kotlinx.coroutines.CoroutineStart
-import kotlinx.coroutines.DelicateCoroutinesApi
 import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.GlobalScope
 import kotlinx.coroutines.Job
 import kotlinx.coroutines.NonCancellable
 import kotlinx.coroutines.launch