Remove non-unicode character from Tibetan text.

etc/HELLO

@@ -5,7 +5,7 @@ Non-ASCII examples:
           Cze,B6f(B!, Dobr,B}(B den, ,L7T`PRabRcYbU(B!, ,FCei\(B ,Fsar(B, $,1J2J0J;J0J@JOJ=J1J0(B
   Africa: $(3!A!,!>(B
   Middle/Near East: ,Hylem(B, (38R(47d(3T!JSa(4W(3W(B
-  South Asia: $,15h5n5x6-5d6'(B, $,1?(?.?8?M>u?>?0(B, $,1@H@N@X@m@5@^@P@"(B, $,1<U<C<5<m<5<N<m(B, $(7"7"!#C"Q!;"E"S"G!;"7"2"[!;"D"["#"G!>(B
+  South Asia: $,15h5n5x6-5d6'(B, $,1?(?.?8?M>u?>?0(B, $,1@H@N@X@m@5@^@P@"(B, $,1<U<C<5<m<5<N<m(B, $(7"7"!#C!;"E"S"G!;"7"2"[!;"D"["#"G!>(B
   South East Asia: (1JP:R-4U(B, ,TJGQJ4U$CQ:(B, Ch,1`(Bo b,1U(Bn
   East Asia: $ADc:C(B, $(0*/=((B, $B$3$s$K$A$O(B, $(C>H3gGO<<?d(B
   Misc: E,C6(Bo,C~(Ban,Cx(Bo ,Cf(Biu,C<(Ba,C}(Bde, $,2(3(1('('(5(B, $,1x (B p $,1x((B world $,1s"(B hello p  $,2!a(B
@@ -50,7 +50,7 @@ Spanish (espa,Aq(Bol)	,A!(BHola!
 Swedish (p,Ae(B svenska)	Hej, Goddag, Hall,Ae(B
 Tamil ($,1<D<N<_<T<m(B)	$,1<U<C<5<m<5<N<m(B
 Thai (,T@RIRd7B(B)	,TJGQJ4U$CQ:(B, ,TJGQJ4U$hP(B
-Tibetan ($(7"7"]"2!;"G#!"Q"2!;(B)	$(7"7"!#C"Q!;"E"S"G!;"7"2"[!;"D"["#"G!>(B
+Tibetan ($(7"7"]"2!;"G#!"2!;(B)	$(7"7"!#C!;"E"S"G!;"7"2"[!;"D"["#"G!>(B
 Tigrigna ($,1NUP-MmN{(B)	$,1MpMKM[NU(B
 Turkish (T,A|(Brk,Ag(Be)	Merhaba
 Ukrainian (,LcZ`Pw]alZP(B)	,L2vbPn(B