Update rounded_corner.md

Author: taohsu

components/control/select_input/dsm/guideline/rounded_corner.md

@@ -1,25 +1,3 @@
 **`False`** A subtle and minimal style (neutral input border)
 
 **`True`** A soft, friendly style, a bit more playful and approachable
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-### Do & don'ts
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-✅ **Do:** Use rounded corners consistently across all form inputs in the same interface to maintain visual harmony
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-❌ **Don't:** Mix sharp and rounded corners arbitrarily within a single form, creating visual inconsistency
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-✅ **Do:** Choose rounded corners when designing for consumer-facing products where friendliness enhances user comfort
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-❌ **Don't:** Use extreme border radius values that compromise the rectangular nature of form inputs
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-✅ **Do:** Consider accessibility by ensuring rounded corners don't interfere with touch target size on mobile devices
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-❌ **Don't:** Apply rounded corners only to select inputs when other form controls remain sharp-edged
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-✅ **Do:** Test rounded corners with your brand guidelines to ensure they align with overall design language
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-❌ **Don't:** Use rounded corners in highly formal or technical interfaces where neutrality is required
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-✅ **Do:** Maintain consistent corner radius values across different input sizes for visual coherence
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-❌ **Don't:** Round corners so aggressively that the input resembles a pill shape, reducing form recognition