Merge tag 'v3.3.1' into hunter

Remove unused code

Merge pull request arrayfire#1260 from pavanky/where_fix

BUGFIX: Fixing error in where for OpenCL backend

Merge pull request arrayfire#1200 from arrayfire/hotfixes-3.2.2

Hotfixes 3.2.2

Increment version to 3.2.1

Merge pull request arrayfire#1102 from arrayfire/devel

Release 3.2.0

Merge pull request arrayfire#1059 from arrayfire/hotfixes-3.1.3

Hotfixes 3.1.3

Merge pull request arrayfire#1026 from arrayfire/hotfixes-3.1.2

Hotfixes 3.1.2

Merge pull request arrayfire#998 from arrayfire/hotfixes-3.1.1

Hotfixes 3.1.1

Merge pull request arrayfire#974 from arrayfire/devel

Release 3.1.0