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

third_party/sqlite/src/tool/mksqlite3h.tcl

Index: third_party/sqlite/src/tool/mksqlite3h.tcl
diff --git a/third_party/sqlite/src/tool/mksqlite3h.tcl b/third_party/sqlite/src/tool/mksqlite3h.tcl
index 554069c32398ce78ef236cc8aad23b0e48406b56..a89b9f9beb0df39ff4123108212e1072786b763f 100644
--- a/third_party/sqlite/src/tool/mksqlite3h.tcl
+++ b/third_party/sqlite/src/tool/mksqlite3h.tcl
@@ -65,9 +65,17 @@ close $in
 set varpattern {^[a-zA-Z][a-zA-Z_0-9 *]+sqlite3_[_a-zA-Z0-9]+(\[|;| =)}
 set declpattern {^ *[a-zA-Z][a-zA-Z_0-9 ]+ \**sqlite3_[_a-zA-Z0-9]+\(}
 
-# Process the src/sqlite.h.in ext/rtree/sqlite3rtree.h files.
+# Force the output to use unix line endings, even on Windows.
+fconfigure stdout -translation lf
+
+set filelist [subst {
+  $TOP/src/sqlite.h.in
+  $TOP/ext/rtree/sqlite3rtree.h
+}]
+
+# Process the source files.
 #
-foreach file [list $TOP/src/sqlite.h.in $TOP/ext/rtree/sqlite3rtree.h] {
+foreach file $filelist {
   set in [open $file]
   while {![eof $in]} {