Remove obsolete options

Author: tpope

autoload/rails.vim

@@ -363,7 +363,7 @@ function! s:error(str)
 endfunction
 
 function! s:debug(str)
-  if g:rails_debug
+  if exists("g:rails_debug") && g:rails_debug
     echohl Debug
     echomsg a:str
     echohl None

doc/rails.txt

@@ -1016,8 +1016,9 @@ can be enabled by setting them to 1 in your vimrc, and disabled by setting
 them to 0. >
 	let g:rails_some_option=1
 	let g:rails_some_option=0
-Most of these should never need to be used.  The two that might be interesting
-are |g:rails_expensive| and |g:rails_default_database|.
+Most of these seldom need to be used.  So seldom, in fact, that you should
+notify the |rails-plugin-author| if you find any of them useful, as nearly all
+are being considered for removal.
 
 						*g:loaded_rails*  >
 	let g:loaded_rails=1

plugin/rails.vim

@@ -66,12 +66,11 @@ function! s:SetOptDefault(opt,val)
   endif
 endfunction
 
-call s:SetOptDefault("rails_level",3)
 call s:SetOptDefault("rails_statusline",1)
 call s:SetOptDefault("rails_syntax",1)
 call s:SetOptDefault("rails_mappings",1)
 call s:SetOptDefault("rails_abbreviations",1)
-call s:SetOptDefault("rails_expensive",1+0*(has("win32")||has("win32unix")))
+call s:SetOptDefault("rails_expensive",1)
 call s:SetOptDefault("rails_dbext",g:rails_expensive)
 call s:SetOptDefault("rails_default_file","README")
 call s:SetOptDefault("rails_default_database","")
@@ -80,7 +79,6 @@ call s:SetOptDefault("rails_modelines",0)
 call s:SetOptDefault("rails_menu",1)
 call s:SetOptDefault("rails_gnu_screen",1)
 call s:SetOptDefault("rails_history_size",5)
-call s:SetOptDefault("rails_debug",0)
 call s:SetOptDefault("rails_generators","controller\nintegration_test\nmailer\nmigration\nmodel\nobserver\nplugin\nresource\nscaffold\nsession_migration")
 if g:rails_dbext
   if exists("g:loaded_dbext") && executable("sqlite3") && ! executable("sqlite")