nvim: switch to cmp's signature plugin

.config/nvim/lua/plugins.lua

@@ -35,6 +35,7 @@ require("packer").startup(function()
 	use({ "hrsh7th/cmp-vsnip", after = "nvim-cmp" })
 	use({ "hrsh7th/cmp-buffer", after = "nvim-cmp" })
 	use({ "hrsh7th/cmp-path", after = "nvim-cmp" })
+	use({ "hrsh7th/cmp-nvim-lsp-signature-help", after = "nvim-cmp" })
 
 	-- snippets
 	use({
@@ -50,14 +51,6 @@ require("packer").startup(function()
 		after = "vim-vsnip",
 	})
 
-	-- lsp signature
-	use({
-		"ray-x/lsp_signature.nvim",
-		config = function()
-			require("plugins.lspsignature")
-		end,
-	})
-
 	-- autopairs
 	use({
 		"windwp/nvim-autopairs",