tests: assert:set_parameter('TableFormatLevel', 100) #10925

luassert uses 3 by default, which is often not enough.

Instead of documenting how to increase it, let's use a more fitting
(sane) default of 100 levels.

test/functional/plugin/shada_spec.lua

@@ -1360,8 +1360,6 @@ describe('autoload/shada.vim', function()
       nvim_command('unlet g:__actual')
     end
 
-    assert:set_parameter('TableFormatLevel', 100)
-
     it('works with multiple items', function()
       strings2sd_eq({{
         type=11, timestamp=0, data={