Revert r349541 (Fix MSVC dependency issue between Clang-tablegen and LLVM-tablegen)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@349545 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/cmake/modules/TableGen.cmake b/cmake/modules/TableGen.cmake
index 9ac229d..d1afcb4 100644
--- a/cmake/modules/TableGen.cmake
+++ b/cmake/modules/TableGen.cmake
@@ -158,12 +158,6 @@
       llvm_ExternalProject_BuildCmd(tblgen_build_cmd ${target}
                                     ${LLVM_NATIVE_BUILD}
                                     CONFIGURATION Release)
-      # Create an artificial dependency between tablegen projects, because they
-      # compile the same dependencies, thus using the same build folders.
-      # FIXME: A proper fix requires sequentially chaining tablegens.
-      if (NOT ${project} STREQUAL LLVM)
-        add_dependencies(${project}-tablegen-host LLVM-tablegen-host)
-      endif()
       add_custom_command(OUTPUT ${${project}_TABLEGEN_EXE}
         COMMAND ${tblgen_build_cmd}
         DEPENDS CONFIGURE_LLVM_NATIVE ${target}