- Remove wolfSSL from the legacy projects for Visual Studio 2010 - 2013.
It's no longer possible to maintain the custom build configuration of
wolfSSL for these old versions of Visual Studio.
Note support for wolfSSL was recently added to the winbuild build system
in 4de627ab and the user could possibly make their own wolfSSL build and
attempt to link it using an old version of Visual Studio that way.
Ref: https://gist.github.com/jay/5f6d8d5ba15c12c7457e3216a94da72d
Closes https://github.com/curl/curl/pull/15468
Unlike previous versions of Visual Studio the VC12 solution file format
does not increment the format version number, but instead, only changes
the version comment text.
This incorrectly set version number would cause problems for any third
party piece of software that would read the solution file expecting the
version number to be 12.00 and found it to be 13.00, such as some build
accelerators.
Verified against a freshly created solution file which was generated
with VC12.
Carrying on from commit 11025613b9 added VC12 project files which are
capable of supporting side-by-side compilation, 32-bit and 64-bit
builds as well as support for some of the third-party libraries curl
uses.
