Remove unnecessary plugin configuration

.config/nvim/lua/plugins/conform.lua

@@ -1,9 +0,0 @@
-return {
-  "stevearc/conform.nvim",
-  optional = true,
-  opts = {
-    formatters_by_ft = {
-      go = { "goimports" },
-    },
-  },
-}

.config/nvim/lua/plugins/mason.lua

@@ -1,8 +0,0 @@
-return {
-  "williamboman/mason.nvim",
-  opts = function(_, opts)
-    vim.list_extend(opts.ensure_installed, {
-      "solargraph",
-    })
-  end,
-}

.config/nvim/lua/plugins/none-ls.lua

@@ -1,14 +0,0 @@
-return {
-  "nvimtools/none-ls.nvim",
-  optional = true,
-  opts = function(_, opts)
-    if type(opts.sources) == "table" then
-      local nls = require("null-ls")
-      vim.list_extend(opts.sources, {
-        nls.builtins.code_actions.gomodifytags,
-        nls.builtins.code_actions.impl,
-        nls.builtins.formatting.goimports,
-      })
-    end
-  end,
-}

.config/nvim/lua/plugins/nvim-lspconfig.lua

@@ -1,8 +0,0 @@
-return {
-  "neovim/nvim-lspconfig",
-  opts = {
-    servers = {
-      solargraph = {},
-    },
-  },
-}

.config/nvim/lua/plugins/nvim-treesitter.lua

@@ -1,15 +0,0 @@
-return {
-  {
-    "nvim-treesitter/nvim-treesitter",
-    opts = function(_, opts)
-      vim.list_extend(opts.ensure_installed, {
-        "go",
-        "gomod",
-        "gowork",
-        "gosum",
-        "ruby",
-        "rust",
-      })
-    end,
-  },
-}