example: remove the MicroPython examples

See #4347

examples/widgets/buttonmatrix/lv_example_buttonmatrix_1.py

@@ -1,24 +0,0 @@
-def event_handler(e):
-    code = e.get_code()
-    obj  = e.get_target_obj()
-
-    if code == lv.EVENT.VALUE_CHANGED :
-        id = obj.get_selected_button()
-        txt = obj.get_button_text(id)
-
-        print("%s was pressed"%txt)
-
-buttonm_map = ["1", "2", "3", "4", "5", "\n",
-            "6", "7", "8", "9", "0", "\n",
-            "Action1", "Action2", ""]
-
-buttonm1 = lv.buttonmatrix(lv.screen_active())
-buttonm1.set_map(buttonm_map)
-buttonm1.set_button_width(10, 2)        # Make "Action1" twice as wide as "Action2"
-buttonm1.set_button_ctrl(10, lv.buttonmatrix.CTRL.CHECKABLE)
-buttonm1.set_button_ctrl(11, lv.buttonmatrix.CTRL.CHECKED)
-buttonm1.align(lv.ALIGN.CENTER, 0, 0)
-buttonm1.add_event_cb(event_handler, lv.EVENT.ALL, None)
-
-
-#endif

examples/widgets/buttonmatrix/lv_example_buttonmatrix_3.py

@@ -1,64 +0,0 @@
-def event_cb(e):
-    obj = e.get_target_obj()
-    id = obj.get_selected_button()
-    if id == 0:
-        prev = True
-    else:
-        prev = False
-    if id == 6:
-        next = True
-    else:
-        next = False
-    if prev or next:
-        # Find the checked butto
-        for i in range(7):
-            if obj.has_button_ctrl(i, lv.buttonmatrix.CTRL.CHECKED):
-                break
-        if prev and i > 1:
-            i-=1
-        elif next and i < 5:
-            i+=1
-
-        obj.set_button_ctrl(i, lv.buttonmatrix.CTRL.CHECKED)
-
-#
-# Make a button group
-#
-
-style_bg = lv.style_t()
-style_bg.init()
-style_bg.set_pad_all(0)
-style_bg.set_pad_gap(0)
-style_bg.set_clip_corner(True)
-style_bg.set_radius(lv.RADIUS_CIRCLE)
-style_bg.set_border_width(0)
-
-
-style_button = lv.style_t()
-style_button.init()
-style_button.set_radius(0)
-style_button.set_border_width(1)
-style_button.set_border_opa(lv.OPA._50)
-style_button.set_border_color(lv.palette_main(lv.PALETTE.GREY))
-style_button.set_border_side(lv.BORDER_SIDE.INTERNAL)
-style_button.set_radius(0)
-
-map = [lv.SYMBOL.LEFT,"1","2", "3", "4", "5",lv.SYMBOL.RIGHT, ""]
-
-buttonm = lv.buttonmatrix(lv.screen_active())
-buttonm.set_map(map)
-buttonm.add_style(style_bg, 0)
-buttonm.add_style(style_button, lv.PART.ITEMS)
-buttonm.add_event_cb(event_cb, lv.EVENT.VALUE_CHANGED, None)
-buttonm.set_size(225, 35)
-
-# Allow selecting on one number at time
-buttonm.set_button_ctrl_all(lv.buttonmatrix.CTRL.CHECKABLE)
-buttonm.clear_button_ctrl(0, lv.buttonmatrix.CTRL.CHECKABLE)
-buttonm.clear_button_ctrl(6, lv.buttonmatrix.CTRL.CHECKABLE)
-
-buttonm.set_one_checked(True)
-buttonm.set_button_ctrl(1, lv.buttonmatrix.CTRL.CHECKED)
-
-buttonm.center()
-