MSVC: tools: disable interactive tools

I don't feel like porting linenoise to Windows, there's no getline, etc.
diff --git a/tools/CMakeLists.txt b/tools/CMakeLists.txt
index 317c1c8..94b4eed 100644
--- a/tools/CMakeLists.txt
+++ b/tools/CMakeLists.txt
@@ -2,7 +2,9 @@
 configure_file(${PROJECT_SOURCE_DIR}/tools/config.h.in ${PROJECT_BINARY_DIR}/tools/config.h @ONLY)
 
 add_subdirectory(lint)
-add_subdirectory(re)
+if(NOT WIN32)
+    add_subdirectory(re)
+endif()
 
 set(format_sources
     ${format_sources}