Staging: slicoss: Removal of unused macros in slicoss.c

This patch removes unused macro in slicoss.c as mentioned in TODO tasks.

Signed-off-by: Monam Agarwal <[e-mail]>
Acked-by: Paul E. McKenney <[e-mail]>
Signed-off-by: Peter P Waskiewicz Jr <[e-mail]>

drivers/staging/slicoss/slicoss.c

···
 			_adapter->handle_lock.flags);                   \
 }
 
-#define SLIC_FREE_SLIC_HANDLE(_adapter, _pslic_handle)                  \
-{                                                                       \
-	_pslic_handle->type = SLIC_HANDLE_FREE;                         \
-	spin_lock_irqsave(&_adapter->handle_lock.lock,                  \
-			_adapter->handle_lock.flags);                   \
-	_pslic_handle->next = _adapter->pfree_slic_handles;             \
-	_adapter->pfree_slic_handles = _pslic_handle;                   \
-	spin_unlock_irqrestore(&_adapter->handle_lock.lock,             \
-			_adapter->handle_lock.flags);                   \
-}
-
 static inline void slic_reg32_write(void __iomem *reg, u32 value, bool flush)
 {
 	writel(value, reg);