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

third_party/sqlite/src/test/walbig.test

Index: third_party/sqlite/src/test/walbig.test
diff --git a/third_party/sqlite/src/test/walbig.test b/third_party/sqlite/src/test/walbig.test
index 9ceb8ede6d58eac1c30e30e3ca197d4d049b3713..c43b7e25033b691c05eaa5638d81e3745ef60c2e 100644
--- a/third_party/sqlite/src/test/walbig.test
+++ b/third_party/sqlite/src/test/walbig.test
@@ -17,6 +17,11 @@
 set testdir [file dirname $argv0]
 source $testdir/tester.tcl
 
+ifcapable !wal {
+  finish_test
+  return
+}
+
 # Do not use a codec for this file, as the database is manipulated using
 # external methods (the [fake_big_file] and [hexio_write] commands).
 #
@@ -47,7 +52,7 @@ do_test walbig-1.0 {
 } {wal}
 
 db close
-if {[catch {fake_big_file 5000 [pwd]/test.db}]} {
+if {[catch {fake_big_file 5000 [get_pwd]/test.db}]} {
   puts "**** Unable to create a file larger than 5000 MB. *****"
   finish_test
   return