[sql] Remove fts2 patches.

third_party/sqlite/src/ext/fts2/fts2_icu.c

 /*
 ** 2007 June 22
 **
 ** The author disclaims copyright to this source code.  In place of
 ** a legal notice, here is a blessing:
 **
 **    May you do good and not evil.
 **    May you find forgiveness for yourself and forgive others.
 **    May you share freely, never taking more than you give.
 **
@@ skipping 180 matching lines @@
     UChar32 c;
 
     iStart = ubrk_current(pCsr->pIter);
     iEnd = ubrk_next(pCsr->pIter);
     if( iEnd==UBRK_DONE ){
       return SQLITE_DONE;
     }
 
     while( iStart<iEnd ){
       int iWhite = iStart;
-      U16_NEXT(pCsr->aChar, iWhite, pCsr->nChar, c);
+      U8_NEXT(pCsr->aChar, iWhite, pCsr->nChar, c);
       if( u_isspace(c) ){
         iStart = iWhite;
       }else{
         break;
       }
     }
     assert(iStart<=iEnd);
   }
 
   do {
@@ skipping 39 matching lines @@
 ** Set *ppModule to point at the implementation of the ICU tokenizer.
 */
 void sqlite3Fts2IcuTokenizerModule(
   sqlite3_tokenizer_module const**ppModule
 ){
   *ppModule = &icuTokenizerModule;
 }
 
 #endif /* defined(SQLITE_ENABLE_ICU) */
 #endif /* !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_FTS2) */