Remove reference to MSVC only building X86 backend.

This is no longer true.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179519 91177308-0d34-0410-b5e6-96231b3b80d8

www/get_started.html

@@ -176,10 +176,6 @@ Visual Studio:</p>
     <li><tt>cd build</tt></li>
     <li>If you are using Visual Studio 2008:  <tt>cmake -G "Visual Studio 9 2008" ..\llvm</tt></li>
     <li>Or if you are using Visual Studio 2010:  <tt>cmake -G "Visual Studio 10" ..\llvm</tt></li>
-    <li>By default, CMake will target LLVM to X86.  If you want all targets
-        (needed if you want to run the LLVM tests), add the <tt>-DLLVM_TARGETS_TO_BUILD=all</tt> option to the
-        CMake command line.  Or specify a target from the LLVM_TARGETS_TO_BUILD
-        definition in CMakeLists.txt.</li>
     <li>See the <a href="http://www.llvm.org/docs/CMake.html">LLVM CMake guide</a> for
         more information on other configuration options for CMake.</li>
     <li>The above, if successful, will have created an LLVM.sln file in the