The polyps will have no effect on your Liver Flush programme.
They are mostly an outgrowing of the internal gallbladder wall and are usually made of of fats; mainly cholesterol. One of the jobs of the gallbladder is to regulate cholesterol so its not a surprise that these polyps contain it.
Although only a few ultrasound, around 5% show polyps, when a gallbladder is removed and examined 15% contain them; so they are quite common.