Fix build

Him188 · Him188 · commit 1b8a87b4cebd · 2020-03-08T00:08:11.000+08:00
diff --git a/mirai-core/build.gradle.kts b/mirai-core/build.gradle.kts
@@ -52,10 +52,7 @@ kotlin {
         )
     }
 
-    targets {
-        jvm()
-        android()
-    }
+    jvm()
 
     sourceSets {
         all {
