Delete commented code

Signed-off-by: Claudio Matsuoka <cmatsuoka@gmail.com>
Use channel pan only without a master pan value

Signed-off-by: Claudio Matsuoka <cmatsuoka@gmail.com>
Remove master pan effect and channel data

Signed-off-by: Claudio Matsuoka <cmatsuoka@gmail.com>
[test] Add test for XM set pan effect

Signed-off-by: Claudio Matsuoka <cmatsuoka@gmail.com>
Fix pan effect filter in protracker loader

Signed-off-by: Claudio Matsuoka <cmatsuoka@gmail.com>
IT sets pan on either note or instrument event

Signed-off-by: Claudio Matsuoka <cmatsuoka@gmail.com>
[test] Extend setpan test to ST3 and IT modes

Signed-off-by: Claudio Matsuoka <cmatsuoka@gmail.com>
[test] Remove masterpan test

Signed-off-by: Claudio Matsuoka <cmatsuoka@gmail.com>
[test] Add test for disabled pan in IT

Signed-off-by: Claudio Matsuoka <cmatsuoka@gmail.com>
Set disabled IT pan

Disabled IT pan is set as -1.

Signed-off-by: Claudio Matsuoka <cmatsuoka@gmail.com>
[test] Fix disabled pan reference data for IT test

Signed-off-by: Claudio Matsuoka <cmatsuoka@gmail.com>
Add support for XM with ADPCM samples

Note: this is disabled in coremod

Signed-off-by: Claudio Matsuoka <cmatsuoka@gmail.com>
Update changelog

Signed-off-by: Claudio Matsuoka <cmatsuoka@gmail.com>