Revert "A workaround for a bug in AMD OpenCL"
Revert "A workaround for a bug in AMD OpenCL"

This reverts commit 06660f0130fade48e360f2940bed38fae8646dd2.

ddemidov/vexcl,kapadia/vexcl,Poulpy21/vexcl,Poulpy21/vexcl,Poulpy21/vexcl,ddemidov/vexcl,kapadia/vexcl