fix: execute glib-compile-schemas at build time

The build system does not support such an operation, the correct way is to
put it in the hook of the build package system such as the debian/postinst script

Log: 删除错误的构建命令
Influence: no
Change-Id: I3f97b278dbc4d61ade9fcde313dd46c339a15def

CMakeLists.txt

@@ -259,7 +259,6 @@ install(FILES ${SERVICES} DESTINATION share/dbus-1/services)
 
 #schemas
 install(FILES xml/com.deepin.dde.session-shell.gschema.xml DESTINATION share/glib-2.0/schemas)
-install(CODE "execute_process(COMMAND glib-compile-schemas ${CMAKE_INSTALL_PREFIX}/share/glib-2.0/schemas)")
 
 # dev
 file(GLOB INTERFACE interface/*.h)