Updated 3d doc

doc/installation.md

@@ -235,9 +235,6 @@ You can include the 3D reconstruction module by:
                 - Copy `{freeglutParentDirectory}\freeglut\include\` as `{OpenPoseDirectory}\3rdparty\windows\freeglut\include\`.
                 - Copy `{freeglutParentDirectory}\freeglut\lib\x64\` as `{OpenPoseDirectory}\3rdparty\windows\freeglut\lib\`.
 3. Follow the CMake installation steps. In addition, set the `WITH_FLIR_CAMERA` (only if Spinnaker was installed) and `WITH_3D_RENDERER` options.
-4. In Windows, after openning the OpenPose visual studio solution:
-    1. Right-click on `Solution 'OpenPose'` of the `Solution Explorer` window, usually placed at the top-right part of the VS screen.
-    2. Click on `Properties`. Go to `Configuration Properties` -> `Configuration` and check `Build` for the `OpenPose3DReconstruction` project.
 
 After installation, check the [doc/3d_reconstruction_demo.md](./3d_reconstruction_demo.md) instructions.