Revert "unified build scheme: Try to nudge users to try the "unified" build"

This reverts commit 242ffb05.
Reviewed-by: NMatt Caswell <matt@openssl.org>

Configure

@@ -438,7 +438,6 @@ my $no_sse2=0;
 
 my $user_cflags="";
 my @user_defines=();
-my $unified = 0;
 $config{openssl_api_defines}=[];
 $config{openssl_algorithm_defines}=[];
 $config{openssl_thread_defines}=[];
@@ -632,11 +631,7 @@ foreach (@argvcopy)
 		}
 	elsif (/^[-+]/)
 		{
-		if (/^--unified$/)
-			{
-			$unified=1;
-			}
-		elsif (/^--prefix=(.*)$/)
+		if (/^--prefix=(.*)$/)
 			{
 			$config{prefix}=$1;
 			die "Directory given with --prefix MUST be absolute\n"
@@ -891,16 +886,6 @@ $config{shared_ldflag} = "";
 $target{build_scheme} = [ $target{build_scheme} ]
     if ref($target{build_scheme}) ne "ARRAY";
 
-###### TO BE REMOVED BEFORE FINAL RELEASE
-######
-###### If the user has chosen --unified, we give it to them.
-###### The same happens if we detect that they try to build out-of-source.
-if ($target{build_file} eq "Makefile"
-    && $target{build_scheme}->[0] eq "unixmake"
-    && ($unified || $srcdir ne $blddir)) {
-    $target{build_scheme} = [ "unified", "unix" ];
-}
-
 my ($builder, $builder_platform, @builder_opts) =
     @{$target{build_scheme}};
 
@@ -1913,39 +1898,6 @@ or position independent code, please let us know (but please first make sure
 you have tried with a current version of OpenSSL).
 EOF
 
-###### TO BE REMOVED BEFORE FINAL RELEASE
-######
-###### If the user hasn't chosen --unified, try to nudge them.
-if ($target{build_file} eq "Makefile"
-    && $target{build_scheme}->[0] eq "unixmake"
-    && !$unified) {
-
-    my $plausible_builddir =
-        abs2rel(rel2abs("../_openssl-build_$target"),rel2abs("."));
-    my $plausible_to_sourcedir =
-        abs2rel(rel2abs("."),rel2abs("../_openssl-build_$target"));
-    print <<"EOF";
-
-----------------------------------------------------------------------
-Please consider configuring with the flag --unified .
-It's to test out a new "unified" building system.
-
-One cool feature is that you can have your build directory elsewhere,
-for example:
-
-    make clean          # Clean the current configuration away
-    mkdir $plausible_builddir
-    cd $plausible_builddir
-    $plausible_to_sourcedir/config --unified
-    make
-    make test
-
-Please report any problem you have.
-----------------------------------------------------------------------
-
-EOF
-}
-
 exit(0);
 
 ######################################################################