diff --git a/projects/packages/jetpack-mu-wpcom/src/features/custom-css/custom-css.php b/projects/packages/jetpack-mu-wpcom/src/features/custom-css/custom-css.php
index eda09f550b0e1..7fbb0a44285b1 100644
--- a/projects/packages/jetpack-mu-wpcom/src/features/custom-css/custom-css.php
+++ b/projects/packages/jetpack-mu-wpcom/src/features/custom-css/custom-css.php
@@ -988,7 +988,7 @@ public static function editor_max_image_size( $dims, $size = 'medium', $context
 			list( $width, $height ) = $dims;
 
 			// @phan-suppress-next-line PhanUndeclaredClassInCallable
-			if ( class_exists( 'Jetpack' ) && is_callable( 'Jetpack::get_content_width' ) && 'large' === $size && 'edit' === $context ) {
+			if ( class_exists( 'Jetpack' ) && 'large' === $size && 'edit' === $context ) {
 				// @phan-suppress-next-line PhanUndeclaredClassMethod
 				$width = Jetpack::get_content_width();
 			}
@@ -1030,7 +1030,7 @@ public static function set_content_width() {
 			}
 
 			// @phan-suppress-next-line PhanUndeclaredClassInCallable
-			if ( class_exists( 'Jetpack' ) && is_callable( 'Jetpack::get_content_width' ) ) {
+			if ( class_exists( 'Jetpack' ) ) {
 				// @phan-suppress-next-line PhanUndeclaredClassMethod
 				$GLOBALS['content_width'] = Jetpack::get_content_width();
 			}
@@ -1079,7 +1079,7 @@ public static function load_revision_php() {
 		 */
 		public static function custom_css_loaded() {
 			// @phan-suppress-next-line PhanUndeclaredClassInCallable
-			if ( class_exists( 'Jetpack' ) && is_callable( 'Jetpack::enable_module_configurable' ) ) {
+			if ( class_exists( 'Jetpack' ) ) {
 				// @phan-suppress-next-line PhanUndeclaredClassMethod
 				Jetpack::enable_module_configurable( __FILE__ );
 			}
@@ -1252,4 +1252,4 @@ public function subvalue() { // phpcs:ignore MediaWiki.Usage.NestedFunctions.Nes
 			}
 		}
 	}
-endif;
\ No newline at end of file
+endif;