Remove: Shea Manga (#3725)

has been dead for quite long time

src/id/sheamanga/build.gradle

@@ -1,9 +0,0 @@
-ext {
-    extName = 'Shea Manga'
-    extClass = '.SheaManga'
-    themePkg = 'mangathemesia'
-    baseUrl = 'https://sheakomik.com'
-    overrideVersionCode = 4
-}
-
-apply from: "$rootDir/common.gradle"

src/id/sheamanga/src/eu/kanade/tachiyomi/extension/id/sheamanga/SheaManga.kt

@@ -1,23 +0,0 @@
-package eu.kanade.tachiyomi.extension.id.sheamanga
-
-import eu.kanade.tachiyomi.multisrc.mangathemesia.MangaThemesia
-import eu.kanade.tachiyomi.network.interceptor.rateLimit
-import okhttp3.Dns
-import okhttp3.OkHttpClient
-import java.text.SimpleDateFormat
-import java.util.Locale
-
-class SheaManga : MangaThemesia(
-    "Shea Manga",
-    "https://sheakomik.com",
-    "id",
-    dateFormat = SimpleDateFormat("MMMM dd, yyyy", Locale.forLanguageTag("id")),
-) {
-
-    override val client: OkHttpClient = super.client.newBuilder()
-        .rateLimit(4)
-        .dns(Dns.SYSTEM)
-        .build()
-
-    override val hasProjectPage = true
-}