ref(generator) Dedent unecessary else statement

lua/neogen/generator.lua

@@ -231,7 +231,8 @@ return setmetatable({}, {
             -- Calls the snippet expand function for required snippet engine
             engines[snippet_engine](generated_snippet, { row, 0 })
             return
-        else
+        end
+
         -- We use default marks for jumping between annotations
         -- Append content to row
         vim.api.nvim_buf_set_lines(0, row, row, true, content)
@@ -247,6 +248,5 @@ return setmetatable({}, {
             -- Add range mark after first jump
             mark:add_range_mark({ row, 0, row + #template_content, 1 })
         end
-        end
     end,
 })