rm Unix source package generator as GitLab packs source archives automatically

cmake/BornAgain/Pack.cmake

@@ -52,30 +52,7 @@ elseif(APPLE)
     set(CPACK_GENERATOR "DragNDrop")
 
 elseif(UNIX)
-    # Source package:
-    set(CPACK_SOURCE_GENERATOR "TGZ")
-    set(CPACK_SOURCE_IGNORE_FILES
-        ~$
-        .pyc$
-        .log$
-        /CMakeLists.txt.user
-        /deploy
-        /devtools/release
-        /devtools/sandboxes
-        /__pycache__/
-        /.git/
-        /.gitignore
-        /.gitlab-ci.yml
-        /hugo/public/
-        /hugo/resources/
-        /build/
-        /qbuild/
-        /debug/
-    )
-
-    # Binary package (self-extracting tgz, file extension .sh;
-    #                 to preview the contents of the installer, run 'cpack -G TGZ'):
-    set(CPACK_GENERATOR STGZ)
+    set(CPACK_GENERATOR STGZ) # generates self-extracting tgz with file extension .sh
 
 endif()