[sqlite] Remove obsolete reference version 3.8.7.4.

third_party/sqlite/sqlite-src-3080704/ext/rtree/rtree.h

Index: third_party/sqlite/sqlite-src-3080704/ext/rtree/rtree.h
diff --git a/third_party/sqlite/sqlite-src-3080704/ext/rtree/rtree.h b/third_party/sqlite/sqlite-src-3080704/ext/rtree/rtree.h
deleted file mode 100644
index 1fdbcccc5ef6ee8f27352f7d8b7f0d72cbf1f40f..0000000000000000000000000000000000000000
--- a/third_party/sqlite/sqlite-src-3080704/ext/rtree/rtree.h
+++ /dev/null
@@ -1,26 +0,0 @@
-/*
-** 2008 May 26
-**
-** 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.
-**
-******************************************************************************
-**
-** This header file is used by programs that want to link against the
-** RTREE library.  All it does is declare the sqlite3RtreeInit() interface.
-*/
-#include "sqlite3.h"
-
-#ifdef __cplusplus
-extern "C" {
-#endif  /* __cplusplus */
-
-int sqlite3RtreeInit(sqlite3 *db);
-
-#ifdef __cplusplus
-}  /* extern "C" */
-#endif  /* __cplusplus */