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//Load WP Contact Form 7 plugin dependencies only if shortcode present
	function dvk_dequeue_scripts() {
		$load_scripts = false;
	
		if( is_singular() ) {
			$post = get_post();
			if( has_shortcode($post->post_content, 'contact-form-7') ) {
				$load_scripts = true;
			}
		}
	
		if( ! $load_scripts ) {
			wp_dequeue_script( 'contact-form-7' );
			wp_dequeue_style( 'contact-form-7' );
		}
	}
	
	add_action( 'wp_enqueue_scripts', 'dvk_dequeue_scripts', 99 );