Cleanup SQLite 3.6.18 import.

third_party/sqlite/src/ext/icu/icu.c

 /*
 ** 2007 May 6
 **
 ** 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 20 matching lines @@
 #if !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_ICU)
 
 /* Include ICU headers */
 #include <unicode/utypes.h>
 #include <unicode/uregex.h>
 #include <unicode/ustring.h>
 #include <unicode/ucol.h>
 
 #include <assert.h>
 
-// TODO(evanm): this is cut'n'pasted from fts2.c.  Why is it necessary?
-#if !defined(SQLITE_CORE)
-# define SQLITE_CORE 1
-#endif
-
 #ifndef SQLITE_CORE
   #include "sqlite3ext.h"
   SQLITE_EXTENSION_INIT1
 #else
   #include "sqlite3.h"
 #endif
 
 /*
 ** Maximum length (in bytes) of the pattern in a LIKE or GLOB
 ** operator.
@@ skipping 439 matching lines @@
   sqlite3 *db, 
   char **pzErrMsg,
   const sqlite3_api_routines *pApi
 ){
   SQLITE_EXTENSION_INIT2(pApi)
   return sqlite3IcuInit(db);
 }
 #endif
 
 #endif