Remove all non-Magisk hiding code

Magisk no longer interferes with any signals/info that were not created
or caused by Magisk itself.

native/jni/utils/misc.hpp

@@ -58,6 +58,9 @@ reversed_container<T> reversed(T &base) {
     return reversed_container<T>(base);
 }
 
+template<class T>
+static inline void default_new(T *&p) { p = new T(); }
+
 template<typename T, typename Impl>
 class stateless_allocator {
 public: