Enter this custom CSS.

#master .info-box {
  display: none !important;
}
#master .attachment .wpc2-post.type-post,
#master .search .wpc2-post.type-post,
#master .archive .wpc2-post.type-post,
#master .blog .wpc2-post.type-post {
  margin-left: 0 !important;
}