Revert "removing skipSx from utility styled"

This reverts commit 94dafc0.

Author: boutahlilsoufiane

packages/mui-system/src/createStyled.js

@@ -74,6 +74,7 @@ export default function createStyled(input = {}) {
       name: componentName,
       slot: componentSlot,
       skipVariantsResolver: inputSkipVariantsResolver,
+      skipSx: inputSkipSx,
       overridesResolver,
       ...options
     } = inputOptions;
@@ -84,6 +85,8 @@ export default function createStyled(input = {}) {
         ? inputSkipVariantsResolver
         : (componentSlot && componentSlot !== 'Root') || false;
 
+    const skipSx = inputSkipSx || false;
+
     let label;
 
     if (process.env.NODE_ENV !== 'production') {
@@ -151,10 +154,12 @@ export default function createStyled(input = {}) {
         });
       }
 
-      expressionsWithDefaultTheme.push((props) => {
-        const theme = isEmpty(props.theme) ? defaultTheme : props.theme;
-        return styleFunctionSx({ ...props, theme });
-      });
+      if (!skipSx) {
+        expressionsWithDefaultTheme.push((props) => {
+          const theme = isEmpty(props.theme) ? defaultTheme : props.theme;
+          return styleFunctionSx({ ...props, theme });
+        });
+      }
 
       const numOfCustomFnsApplied = expressionsWithDefaultTheme.length - expressions.length;