qcacmn: Remove the export symbol for static variable and function

Fix the compiling issue by removing the export symbol for static
qdf_timer_clean and mem_debug_disabled.

Change-Id: I01f886e04af2f294ed9cb93afdbb69d7d8b9f2ee
CRs-Fixed: 3363506

qdf/linux/src/qdf_mc_timer.c

@@ -259,7 +259,6 @@ static void qdf_timer_clean(void)
 	for (i = 0; i < QDF_DEBUG_DOMAIN_COUNT; ++i)
 		qdf_mc_timer_free_leaked_timers(&qdf_timer_domains[i]);
 }
-qdf_export_symbol(qdf_timer_clean);
 
 /**
  * qdf_mc_timer_manager_exit() - exit QDF timer debug functionality

qdf/linux/src/qdf_mem.c

@@ -74,7 +74,6 @@ static inline bool add_headroom_for_cnss_prealloc_cache_ptr(void)
 #if defined(MEMORY_DEBUG) || defined(NBUF_MEMORY_DEBUG)
 static bool mem_debug_disabled;
 qdf_declare_param(mem_debug_disabled, bool);
-qdf_export_symbol(mem_debug_disabled);
 #endif
 
 #ifdef MEMORY_DEBUG