code cleanup: remove dead code related to language 'wo'

This is the only reference to the language.

phsource/ph_wolof

@@ -1,124 +0,0 @@
- 
-phoneme @    //  Schwa, can be stressed
-  vwl   starttype #@  endtype #@
-  length 140
-  FMT(vowel/@)
-endphoneme
-
-
-phoneme @:
-  vwl   starttype #@  endtype #@
-  length 270
-  FMT(vowel/@)
-endphoneme
-
-
-phoneme i
-  vwl starttype #i endtype #i
-  length 140
-  IfNextVowelAppend(;)
-  FMT(vowel/ii_6)
-endphoneme
-
-
-phoneme i:
-  vwl starttype #i endtype #i
-  length 270
-  IfNextVowelAppend(;)
-  FMT(vowel/i)
-endphoneme
-
-
-phoneme e
-  vwl starttype #e endtype #e
-  length 140
-  FMT(vowel/e)
-endphoneme
-
-
-phoneme e:
-  vwl starttype #e endtype #e
-  length 270
-  FMT(vowel/e)
-endphoneme
-
-
-phoneme E
-  vwl starttype #e endtype #e
-  length 140
-  FMT(vowel/ee_5)
-endphoneme
-
-
-phoneme E:
-  vwl starttype #e endtype #e
-  length 270
-  FMT(vowel/ee_5)
-endphoneme
-
-
-phoneme a
-  vwl starttype #a endtype #a
-  length 140
-  FMT(vowel/a#)
-endphoneme
-
-
-phoneme a:
-  vwl starttype #a endtype #a
-  length 270
-  FMT(vowel/a_6)
-endphoneme
-
-
-phoneme O
-  vwl starttype #o endtype #o
-  length 140
-  FMT(vowel/oo)
-endphoneme
-
-
-phoneme O:
-  vwl starttype #o endtype #o
-  length 270
-  FMT(vowel/oo)
-endphoneme
-
-
-phoneme o
-  vwl starttype #o endtype #o
-  length 140
-  FMT(vowel/o)
-endphoneme
-
-
-phoneme o:
-  vwl starttype #o endtype #o
-  length 270
-  FMT(vowel/o)
-endphoneme
-
-
-phoneme u
-  vwl starttype #u endtype #u
-  length 140
-  FMT(vowel/u_2)
-endphoneme
-
-
-phoneme u:
-  vwl starttype #u endtype #u
-  length 270
-  FMT(vowel/u)
-endphoneme
-
-
-
-// Consonants
-
-phoneme s2     // second part of geminated [s:]
-  import_phoneme consonants/s2
-endphoneme
-
-
-

phsource/phonemes

@@ -1817,9 +1817,6 @@ include ph_tatar
 phonemetable vi base1
 include ph_vietnam
 
-phonemetable wo base1
-include ph_wolof
-
 phonemetable yue base1
 include ph_yue