nvim: Remove killersheep plugin

nvim/.config/nvim/lua/disabled_plugins/killersheep.lua

@@ -1,15 +0,0 @@
-return {
-    {
-        "seandewar/killersheep.nvim",
-        config = function()
-            require("killersheep").setup {
-                gore = true, -- Enables/disables blood and gore.
-                keymaps = {
-                    move_left = "h", -- Keymap to move cannon to the left.
-                    move_right = "l", -- Keymap to move cannon to the right.
-                    shoot = "<Space>" -- Keymap to shoot the cannon.
-                }
-            }
-        end
-    }
-}