Remove CN glyphs for 疝 (U+759D), 嵆 (U+5D46) and possibly 峇 (U+5CC7)

I will do a separate update on some glyphs which was kind of buried deep down in the many issues this font has.

From issue #205:
> The three glyphs require minor correction.
> Only SC affected: 疝嵆 - straighten up the 山 part.
> For SC/TC/HK versions, The 山 of 峇 should not have the feet sticking out.
>
> 

Actually the TW glyphs for 疝 (U+759D) and 嵆 (U+5D46) already have the 山 component straightened, so I suggest to remove the CN glyphs and remap to TW forms (also partially related to issue #322 for 嵆 (U+5D46)).

And if the 人 component is to be unified to the JP forms, remove the CN glyph for 峇 (U+5CC7). If not, stick with the adjustment to remove the right feet from the 山 part.

And finally, for the JP glyph, remove the feet from the top 山 part of 峇 (U+5CC7) as per issue #293, as circled.