SPDX: fix wrong SPDX information and doc

Documentation/docs/advanced/spdx_and_sbom.md

@@ -59,7 +59,7 @@ In the third party `CMakeLists.txt`, make sure to specify, in the `vtk_module_th
     SPDX_COPYRIGHT_TEXT
       "Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen"
     SPDX_DOWNLOAD_LOCATION
-      https://gitlab.kitware.com/vtk/vtk
+      "https://gitlab.kitware.com/vtk/vtk"
     [...]
 ```
 

IO/PLY/vtk.module

@@ -4,10 +4,6 @@ LIBRARY_NAME
   vtkIOPLY
 LICENSE_FILES
   Copyright.txt
-SPDX_LICENSE_IDENTIFIER
-  MIT
-SPDX_COPYRIGHT_TEXT
-  Copyright © (c) Ken Martin, Will Schroeder, Bill Lorensen
 KIT
   VTK::IO
 GROUPS

ThirdParty/loguru/CMakeLists.txt

 vtk_module_third_party_internal(
     LICENSE_FILES "vtkloguru/LICENSE"
-    SPDX_LICENSE_IDENTIFIER "MIT AND BSD"
-    SPDX_COPYRIGHT_TEXT "Copyright © (c) Ken Martin, Will Schroeder, Bill Lorensen"
     VERSION       "2.1"
     STANDARD_INCLUDE_DIRS)