add functionality to delete pixel

dotscape.mlb

@@ -3,13 +3,6 @@ $(SML_LIB)/basis/basis.mlb
 (* FUNCTIONAL CORE *)
 fcore/app-type.sml
 
-ann
-  "allowVectorExps true"
-in
-  fcore/ndc.sml
-  cozette-sml/fonts/cozette-ascii.mlb
-end
-
 fcore/graph-lines.sml
 fcore/click-points.sml
 fcore/app-init.sml
@@ -34,21 +27,6 @@ fcore/parse-file.sml
 $(SML_LIB)/basis/mlton.mlb
 $(SML_LIB)/cml/cml.mlb
 
-ann
-  "allowFFI true"
-in
-  ffi/gles3-import.sml
-  ffi/glfw-import.sml
-  ffi/glfw-input.sml
-end
-
-ann
-  "allowVectorExps true"
-in
-  imperative-shell/constants.sml
-  imperative-shell/app-draw.sml
-end
-
 imperative-shell/input-callbacks.sml
 
 imperative-shell/update-thread.sml