Remove the Alpha backend.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143164 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/docs/CMake.html b/docs/CMake.html
index ac07b0d..90ead41 100644
--- a/docs/CMake.html
+++ b/docs/CMake.html
@@ -249,7 +249,7 @@
   <dd>Semicolon-separated list of targets to build, or <i>all</i> for
     building all targets. Case-sensitive. For Visual C++ defaults
     to <i>X86</i>. On the other cases defaults to <i>all</i>. Example:
-    <i>-DLLVM_TARGETS_TO_BUILD="X86;PowerPC;Alpha"</i>.</dd>
+    <i>-DLLVM_TARGETS_TO_BUILD="X86;PowerPC"</i>.</dd>
 
   <dt><b>LLVM_BUILD_TOOLS</b>:BOOL</dt>
   <dd>Build LLVM tools. Defaults to ON. Targets for building each tool