cpumask: drop cpumask_assign_cpu()

Commit decde1f ("cpumask: Add assign cpu") was merged bypassing
cpumasks reviewers. It adds atomic and non-atomic cpumask_assign_cpu()
helpers.

In the same merge window, commit 5c563ee ("cpumask: introduce
assign_cpu() macro") added the same functionality. So now we have it
duplicated.

__cpumask_assign_cpu() has never been used since introducing, and because
this series reworks the only user of cpumask_assign_cpu(), both functions
become a dead code.

Signed-off-by: Yury Norov [NVIDIA] <yury.norov@gmail.com>

Author: YuryNorov

include/linux/cpumask.h

@@ -558,22 +558,6 @@ static __always_inline void __cpumask_clear_cpu(int cpu, struct cpumask *dstp)
 	__clear_bit(cpumask_check(cpu), cpumask_bits(dstp));
 }
 
-/**
- * cpumask_assign_cpu - assign a cpu in a cpumask
- * @cpu: cpu number (< nr_cpu_ids)
- * @dstp: the cpumask pointer
- * @bool: the value to assign
- */
-static __always_inline void cpumask_assign_cpu(int cpu, struct cpumask *dstp, bool value)
-{
-	assign_bit(cpumask_check(cpu), cpumask_bits(dstp), value);
-}
-
-static __always_inline void __cpumask_assign_cpu(int cpu, struct cpumask *dstp, bool value)
-{
-	__assign_bit(cpumask_check(cpu), cpumask_bits(dstp), value);
-}
-
 /**
  * cpumask_test_cpu - test for a cpu in a cpumask
  * @cpu: cpu number (< nr_cpu_ids)