compiler.codegen: removing the insn-counts global
compiler.codegen: removing the insn-counts global

It created a histogram of instructins for debugging, but it is not so
useful...

tgunr/factor,factor/factor,factor/factor,AlexIljin/factor,mrjbq7/factor,factor/factor,tgunr/factor,AlexIljin/factor,bpollack/factor,bpollack/factor,bpollack/factor,factor/factor,mrjbq7/factor,AlexIljin/factor,bpollack/factor,factor/factor,AlexIljin/factor,AlexIljin/factor,tgunr/factor,tgunr/factor,AlexIljin/factor,tgunr/factor,bpollack/factor,mrjbq7/factor,factor/factor,AlexIljin/factor,bpollack/factor,mrjbq7/factor,mrjbq7/factor,bpollack/factor,mrjbq7/factor,tgunr/factor