query_config: Move to programs/test

As the SSL programs, like ssl_client2 and ssl_server2, are dependent on
SSL and therefore about to be removed, the only consumer of query_config
is the query_compile_time_config test. As such, it makes sense to move
query_config to be next to what uses it.
diff --git a/visualc/VS2010/query_compile_time_config.vcxproj b/visualc/VS2010/query_compile_time_config.vcxproj
index 83a29f0..dcb6f32 100644
--- a/visualc/VS2010/query_compile_time_config.vcxproj
+++ b/visualc/VS2010/query_compile_time_config.vcxproj
@@ -20,7 +20,7 @@
   </ItemGroup>

   <ItemGroup>

     <ClCompile Include="..\..\programs\test\query_compile_time_config.c" />

-    <ClCompile Include="..\..\programs\ssl\query_config.c" />

+    <ClCompile Include="..\..\programs\test\query_config.c" />

   </ItemGroup>

   <ItemGroup>

     <ProjectReference Include="mbedTLS.vcxproj">