Remove old snippet from mac build

.ci/script.sh

@@ -32,13 +32,6 @@ if [ $TRAVIS_OS_NAME == linux ]; then
 fi
 
 if [ $TRAVIS_OS_NAME == osx ]; then
-    # Build dependencies.
-    cmake -Hdeps -B.deps -DCMAKE_BUILD_TYPE=Release \
-        -DUSE_BUNDLED_BOOST=OFF \
-        -DUSE_BUNDLED_GTEST=OFF \
-        -DUSE_BUNDLED_JSON=OFF
-    cmake --build .deps
-
     # Build the library.
     cmake -H. -Bbuild -DOPENSSL_ROOT_DIR=/usr/local/opt/openssl \
         -DBUILD_LIB_TESTS=OFF \