Add //third_party/sqlite to dirs_to_snapshot, remove net_sql.patch

third_party/sqlite/src/test/alter3.test

Index: third_party/sqlite/src/test/alter3.test
diff --git a/third_party/sqlite/src/test/alter3.test b/third_party/sqlite/src/test/alter3.test
index 74ba33c5e1c72c95b71048a29fc9408b4ea0a0cf..28d293e24bca55bc4c81b5c5308f99e337981261 100644
--- a/third_party/sqlite/src/test/alter3.test
+++ b/third_party/sqlite/src/test/alter3.test
@@ -196,7 +196,7 @@ ifcapable schema_version {
 
 do_test alter3-4.1 {
   db close
-  file delete -force test.db
+  forcedelete test.db
   set ::DB [sqlite3 db test.db]
   execsql {
     PRAGMA legacy_file_format=ON;
@@ -237,8 +237,8 @@ do_test alter3-4.99 {
 
 ifcapable attach {
   do_test alter3-5.1 {
-    file delete -force test2.db
-    file delete -force test2.db-journal
+    forcedelete test2.db
+    forcedelete test2.db-journal
     execsql {
       CREATE TABLE t1(a, b);
       INSERT INTO t1 VALUES(1, 'one');