Remove D tests

Move D tests to separate branch, since the bindings have an unstable API.

.gitignore

@@ -118,20 +118,18 @@
 !/src/init
 /src/init/*
 
+# /src/init/c
+!/src/init/c/
+/src/init/c/*
+
+!/src/init/c/gdextension_interface.c
+
 # /src/init/cpp
 !/src/init/cpp/
 /src/init/cpp/*
 
 !/src/init/cpp/bind.cpp
 
-# /src/init/d
-!/src/init/d/
-/src/init/d/*
-
-!/src/init/d/bind.d
-
-!/src/init/d
-
 # /res
 !/res/
 /res/*
@@ -149,4 +147,3 @@
 # Godot 4+ specific ignores
 .godot/
 
-