Regression of old ws2_32:sock test by incomplete and nonfunctional mockup-code added 0.4.12-dev-693-g2b1f6c8

Prior to 0.4.9-dev-616-g67c6659 the test for ws2_32:sock completed successfully.
This commit was titled "[WS2_32_WINETEST] Sync with Wine Staging 3.3".
It caused the test to crash because of some new added wine tests.
See (https://reactos.org/testman/compare.php?ids=60023,60025) for ws2_32:sock.

But the old ws2_32:sock test was able to run until the commit of 0.4.12-dev-693-g2b1f6c8 .
Pierre Schweitzer made this commit and titled it as follows:
"[MSAFD] Add an initial implementation of SIO_GET_EXTENSION_FUNCTION_POINTER IOCTL"
This was related to CORE-14966 (https://jira.reactos.org/browse/CORE-14966).
Pierre noted "this doesn't fix Steam running on ReactOS".

Here is a patch to two lines of code can fix the old test. dllmain_c_01.patch
With this change, the the old wine ws2_32_winetest:sock test can finish successfully.

An executable of the old winetest ws2_32_winetest is attached here. ws2_32_winetest-0.4.9-dev-615.exe
I plan to do a testbot run shortly.