لَا يُبْطِلُهُمَا شَيْءٌ وَلَا يَنْقُضُهُمَا
Nothing invalidates or revokes their underlying prescribed status.
Yubtilu concerns making something void; yanqudu concerns undoing or overturning what stands established. The two negations emphasize that the basic rulings concerning Hajj and jihad remain in place.
The point concerns the continuing ruling, not a claim that every person is performing these duties at every moment under all conditions.