revert: remove array-based string building optimization

The optimization provides no benefit since the function is only called with >1 strings, making the array-based approach unnecessary overhead.

Author: quantizor

src/lib/sort-modifiers.ts

@@ -15,9 +15,6 @@ export const createSortModifiers = (config: AnyConfig) => {
     })
 
     return (modifiers: readonly string[]): string[] => {
-        // Fast path for common cases
-        if (modifiers.length <= 1) return [...modifiers]
-
         const result: string[] = []
         let currentSegment: string[] = []