nvim: Simplify statusline python check

nvim/.config/nvim/lua/plugins/statusline.lua

@@ -22,14 +22,11 @@ return {
 					return ""
 				-- we don't know if we have python yet, start a check
 				else
-					vim.system({ "poetry", "env", "info", "-p" }, { text = true }, function(obj)
-						if obj.code == 0 then
+					if vim.fn.has("python3") == 1 then
 						has_pynvim = 1
 					else
 						has_pynvim = 0
 					end
-					end)
-					has_pynvim = 0
 				end
 			end