Cleanup: remove "local" workaround in execute function.

Cleanup: remove "local" workaround in execute function.

At the time I was unable to determine the cause.

Now, I strongly suspect it was due to the way threads were being created on the parent stack and the child threads could not access them once a resize function happened.
The resize can, on occasion (and likely more often than not), relocate the address location of the range (array).
This relocation in memory likely caused the weird memory behavior.

Now that the memory is allocated such that the it is an array of allocated pointers, the memory addresses should not change when the array of pointers is resized.
The address to the pointers might change, but from the perspective of the child threads, they don't exist or otherwise matter anyway.

Removing the work around cleans up some clutter and what is essentially a waste of resources.