INSTALL: remove a non c-ares section

INSTALL

@@ -321,34 +321,6 @@ Win32
    project. Name it c-ares.
 
 
-   Using BSD-style lwIP instead of Winsock TCP/IP stack in Win32 builds
-   --------------------------------------------------------------------
-
-   In order to compile c-ares using BSD-style lwIP TCP/IP stack
-   it is necessary to make definition of preprocessor symbol USE_LWIPSOCK
-   visible to c-ares compilation processes. To set this definition
-   you have the following alternatives:
-
-   - Modify lib/config-win32.h and src/config-win32.h
-   - Modify lib/Makefile.vc6
-   - Add definition to Project/Settings/C/C++/General/Preprocessor Definitions
-     in the vc6libc-ares.dsw/vc6libc-ares.dsp Visual C++ 6 IDE project.
-
-   Once that libc-ares has been built with BSD-style lwIP TCP/IP stack support,
-   in order to use it with your program it is mandatory that your program
-   includes lwIP header file <lwip/opt.h> (or another lwIP header that includes
-   this) before including any libc-ares header. Your program does not need the
-   USE_LWIPSOCK preprocessor definition which is for libc-ares internals only.
-
-   Compilation has been verified with lwIP 1.4.0 and contrib-1.4.0 from:
-
-   http://download.savannah.gnu.org/releases/lwip/lwip-1.4.0.zip
-   http://download.savannah.gnu.org/releases/lwip/contrib-1.4.0.zip
-
-   This BSD-style lwIP TCP/IP stack support must be considered experimental
-   given that it has been verified that lwIP 1.4.0 still needs some polish,
-   and libc-ares might yet need some additional adjustment, caveat emptor.
-
    Important static c-ares usage note
    ----------------------------------