Remove bad constructor for CachingPool (#19431)

kshyatt · amitmurthy · commit 93208667800a · 2016-11-28T08:45:12.000+05:30
diff --git a/base/workerpool.jl b/base/workerpool.jl
@@ -265,8 +265,6 @@ function CachingPool(workers::Vector{Int})
     return pool
 end
 
-CachingPool(wp::WorkerPool) = CachingPool(workers(wp))
-
 """
     clear!(pool::CachingPool) -> pool
 
