chat: remove redundant copy of macOS app icon

This has been redundant since PR #2180.

Signed-off-by: Jared Van Bortel <jared@nomic.ai>

gpt4all-chat/cmake/deploy-qt-mac.cmake.in

@@ -14,8 +14,6 @@ file(COPY ${MYBERTLLIBS}
      DESTINATION ${CPACK_TEMPORARY_INSTALL_DIRECTORY}/packages/${COMPONENT_NAME_MAIN}/data/bin/gpt4all.app/Contents/Frameworks)
 file(COPY ${MYLLMODELLIBS}
      DESTINATION ${CPACK_TEMPORARY_INSTALL_DIRECTORY}/packages/${COMPONENT_NAME_MAIN}/data/bin/gpt4all.app/Contents/Frameworks)
-file(COPY "${CMAKE_CURRENT_SOURCE_DIR}/resources/gpt4all.icns"
-     DESTINATION ${CPACK_TEMPORARY_INSTALL_DIRECTORY}/packages/${COMPONENT_NAME_MAIN}/data/bin/gpt4all.app/Contents/Resources)
 file(COPY "${CMAKE_CURRENT_SOURCE_DIR}/icons/logo-32.png"
      DESTINATION ${CPACK_TEMPORARY_INSTALL_DIRECTORY}/packages/${COMPONENT_NAME_MAIN}/data)
 file(COPY "${CMAKE_CURRENT_SOURCE_DIR}/icons/logo-48.png"