Revert [SQLite] Hack to touch page cache to debug slow connection close.

sql/connection.cc

Index: sql/connection.cc
diff --git a/sql/connection.cc b/sql/connection.cc
index 378e01472aee83efdc70b547d9dac432e4706184..c1157b960550b2b5c46c7fb864036a96603ab31e 100644
--- a/sql/connection.cc
+++ b/sql/connection.cc
@@ -125,21 +125,6 @@ void Connection::Close() {
   ClearCache();
 
   if (db_) {
-    // TODO(shess): Some additional code to debug http://crbug.com/95527 .
-    // If you are reading this due to link errors or something, it can
-    // be safely removed.
-#if defined(HAS_SQLITE3_95527)
-    unsigned int nTouched = 0;
-    sqlite3_95527(db_, &nTouched);
-
-    // If a VERY large amount of memory was touched, crash.  This
-    // should never happen.
-    // TODO(shess): Pull this in.  It should be page_size * page_cache
-    // or something like that, 4M or 16M.  For now it's just to
-    // prevent optimization.
-    CHECK_LT(nTouched, 1000*1000*1000U);
-#endif
-
     // TODO(shess): Histogram for failure.
     sqlite3_close(db_);
     db_ = NULL;