Remove Multidefs

Multidefs are a bit unwieldy and incomplete.  Remove them in favor of
another mechanism, probably for loops.

Revert "Make Test More Thorough"
Revert "Fix a typo."
Revert "Vim Support for Multidefs"
Revert "Emacs Support for Multidefs"
Revert "Document Multidefs"
Revert "Add a Multidef Test"
Revert "Update Test for Multidefs"
Revert "Process Multidefs"
Revert "Parser Multidef Support"
Revert "Lexer Support for Multidefs"
Revert "Add Multidef Data Structures"

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141378 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/utils/vim/tablegen.vim b/utils/vim/tablegen.vim
index 0d6d3d4..3043489 100644
--- a/utils/vim/tablegen.vim
+++ b/utils/vim/tablegen.vim
@@ -14,7 +14,7 @@
 
 syn case match
 
-syn keyword tgKeyword   def let in code dag field include defm multidef
+syn keyword tgKeyword   def let in code dag field include defm
 syn keyword tgType      class int string list bit bits multiclass
 
 syn match   tgNumber    /\<\d\+\>/