Revert "Fix bug when using build-mac.sh and remove cryptoconditions from mac+win build scripts"

This reverts commit 46c738500f.

build.sh

@@ -9,13 +9,11 @@ set -eu -o pipefail
 if [[ "$OSTYPE" == "linux-gnu"* ]]; then
     ./util/build.sh --disable-tests $@
 elif [[ "$OSTYPE" == "darwin"* ]]; then
-    # code from ./util/build.sh needs to be ported to support --disable-tests
-    #./util/build-mac.sh --disable-tests $@
-    ./util/build-mac.sh $@
+    ./util/build-mac.sh --disable-tests $@
 elif [[ "$OSTYPE" == "msys"* ]]; then
     ./util/build-win.sh --disable-tests $@
-elif [[ "$OSTYPE" == "freebsd"* ]]; then
-    ./util/build.sh --disable-tests $@
+#elif [[ "$OSTYPE" == "freebsd"* ]]; then
+    # placeholder
 else
     echo "Unable to detect your OS. What are you using?"
 fi