Removed external Plugin Submodules and submodules helper

.gitmodules

@@ -1,7 +0,0 @@
-[submodule "pack/plugins/start/nvim-treesitter"]
-	path = pack/plugins/start/nvim-treesitter
-	url = https://github.com/nvim-treesitter/nvim-treesitter
-[submodule "pack/plugins/start/mini.nvim"]
-	path = pack/plugins/start/mini.nvim
-	url = https://github.com/echasnovski/mini.nvim.git
-	branch = stable

submodules.nu

@@ -1 +0,0 @@
-git submodule update --init --remote --recursive