Revert "FS-6870 #vs2012 and vs2010 make download of openssl dependent"

This reverts commit a39db868.

libs/srtp/libsrtp.2010.vcxproj

@@ -421,11 +421,6 @@
   <ItemGroup>
     <None Include="srtp.def" />
   </ItemGroup>
-  <ItemGroup>
-    <ProjectReference Include="..\win32\Download OPENSSL.2010.vcxproj">
-      <Project>{d578e676-7ec8-4548-bd8b-845c635f14ad}</Project>
-    </ProjectReference>
-  </ItemGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets">
   </ImportGroup>

libs/srtp/libsrtp.2012.vcxproj

@@ -429,11 +429,6 @@
   <ItemGroup>
     <None Include="srtp.def" />
   </ItemGroup>
-  <ItemGroup>
-    <ProjectReference Include="..\win32\Download OPENSSL.2012.vcxproj">
-      <Project>{d578e676-7ec8-4548-bd8b-845c635f14ad}</Project>
-    </ProjectReference>
-  </ItemGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets">
   </ImportGroup>