removes gen_wait as wait can be called like any other extern function

gen_input/templates/asmjit/CORENAME.cpp.gtl

@@ -90,7 +90,6 @@ protected:
     using super::write_reg_to_mem;
     using super::gen_read_mem;
     using super::gen_write_mem;
-    using super::gen_wait;
     using super::gen_leave;
     using super::gen_sync;