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

third_party/sqlite/sqlite-src-3080704/tool/tostr.awk

+#!/usr/bin/awk
+#
+# Convert input text into a C string
+#
+{
+  gsub(/\"/,"\\\"");
+  print "\"" $0 "\\n\"";
+}