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

third_party/sqlite/src/test/thread002.test

Index: third_party/sqlite/src/test/thread002.test
diff --git a/third_party/sqlite/src/test/thread002.test b/third_party/sqlite/src/test/thread002.test
index b1e5f6368e87aedfc49e3cfac0954f04b784631c..b39c9ae7cd2617705298df8c02420957bf419675 100644
--- a/third_party/sqlite/src/test/thread002.test
+++ b/third_party/sqlite/src/test/thread002.test
@@ -16,9 +16,11 @@
 
 set testdir [file dirname $argv0]
 
+set do_not_use_codec 1
 source $testdir/tester.tcl
 if {[run_thread_tests]==0} { finish_test ; return }
 
+
 db close
 set ::enable_shared_cache [sqlite3_enable_shared_cache 1]
 
@@ -27,7 +29,7 @@ set ::NTHREAD 10
 do_test thread002.1 {
   # Create 3 databases with identical schemas:
   for {set ii 0} {$ii < 3} {incr ii} {
-    file delete -force test${ii}.db
+    forcedelete test${ii}.db
     sqlite3 db test${ii}.db
     execsql {
       CREATE TABLE t1(k, v);