ar: use the same mapping file for mb-ar1 and mb-ar2 voices

There are small differences between diphone set of the voices, but they are not used from espeak-ng

Makefile.am

@@ -841,7 +841,6 @@ dictsource/zhy_emoji:
 mbrola: \
 	espeak-ng-data/mbrola_ph/af1_phtrans \
 	espeak-ng-data/mbrola_ph/ar1_phtrans \
-	espeak-ng-data/mbrola_ph/ar2_phtrans \
 	espeak-ng-data/mbrola_ph/ca_phtrans \
 	espeak-ng-data/mbrola_ph/cr1_phtrans \
 	espeak-ng-data/mbrola_ph/cs_phtrans \
@@ -888,10 +887,6 @@ espeak-ng-data/mbrola_ph/ar1_phtrans: phsource/mbrola/ar1 src/espeak-ng
 	mkdir -p espeak-ng-data/mbrola_ph
 	ESPEAK_DATA_PATH=$(PWD) src/espeak-ng --compile-mbrola=phsource/mbrola/ar1
 
-espeak-ng-data/mbrola_ph/ar2_phtrans: phsource/mbrola/ar2 src/espeak-ng
-	mkdir -p espeak-ng-data/mbrola_ph
-	ESPEAK_DATA_PATH=$(PWD) src/espeak-ng --compile-mbrola=phsource/mbrola/ar2
-
 espeak-ng-data/mbrola_ph/ca_phtrans: phsource/mbrola/ca src/espeak-ng
 	mkdir -p espeak-ng-data/mbrola_ph
 	ESPEAK_DATA_PATH=$(PWD) src/espeak-ng --compile-mbrola=phsource/mbrola/ca

espeak-ng-data/voices/mb/mb-ar2

@@ -3,4 +3,4 @@ language ar 2
 gender male
 
 pitch 82 117
-mbrola ar2 ar2_phtrans
+mbrola ar2 ar1_phtrans

phsource/mbrola/ar2

@@ -1,74 +0,0 @@
-
-volume 50
-0	b	b 20  b  b
-0   b   NULL   0   b   
-0   t   NULL   0   t   
-0   T   NULL   0   T   
-0   dZ   NULL   0   Z 
-  
-1   H  a	40   X   a   
-1   H  u	40   X   u  
-1   H  i	40   X   i  
-0   H   NULL   0   X   
-
-0   X   NULL   0   x   
-0   d   NULL   0   d   
-0   D   NULL   0   D
-0   r/ NULL 0   r   
-0   r   NULL   0   r
-
-0   z   NULL   0   z
-0   s   NULL   0   s
-0   S   NULL   0   S
-
-1   s[ a   40     s. a.
-1   s[ u   40     s. u.
-1   s[ i   40     s. i.
-0   s[   NULL   0   s.
-
-0   dH dH  30  d. d.
-1  dH a   40   d. a.
-1  dH i   40   d. i.
-1  dH u   40   d. u.
-0   dH   NULL   0   d.
-
-0   t[ a   90     t. a.
-0   t[ u   90      t. u.
-0   t[ i   90       t. i.
-0   t[   NULL   0   t.
-
-
-1   Z a  20      z. a.
-1   Z u  20    z. u.
-1   Z i  20    z. i.
-0   Z   NULL   0   z.
-
-0   A   NULL   0   H
-0   gH   NULL   0   G
-0   f   NULL   0   f
-0   q   NULL   0   q
-0   k   NULL   0   k
-0   l/ NULL 0   l
-0   l   NULL   0   l
-
-0   m   m  100  n   m
-0   m   NULL   0   m
-
-0   n   NULL   0   n
-0   h   NULL   0   h
-0   w   NULL   0   w
-0   j   NULL   0   j
-0   ?   NULL   0   ?
-0   p   NULL   0   NULL
-0   g   NULL   0   NULL
-0   a	a 150   a a
-0   u	u 150   u u
-0   i	i 150   i i
-0   a   NULL   0   a
-0   u   NULL   0   u
-0   i   NULL   0   i
-
- 
-
-
-