SQC-333: Revert previous changes

This commit reverts 1149737.
The sslmode change in the previous commit does not work as expected.
Connection attempts time out, presumably getting hung while negotiating
SSL upgrade. Revert this change until we have the bandwidth to attempt
it again.

src/workerd/api/hyperdrive.c++

@@ -80,7 +80,7 @@ uint16_t Hyperdrive::getPort() {
 
 kj::String Hyperdrive::getConnectionString() {
   return kj::str(getScheme(), "://", getUser(), ":", getPassword(), "@", getHost(), ":", getPort(),
-      "/", getDatabase(), "?sslmode=prefer");
+      "/", getDatabase(), "?sslmode=disable");
 }
 
 kj::Promise<kj::Own<kj::AsyncIoStream>> Hyperdrive::connectToDb() {