MANAMA, Bahrain — Bahrain's Shiite opposition has rejected any dialogue with the Gulf kingdom's Sunni royal family until "tanks are off the streets" and the army stops "shooting at peaceful protesters."Khalil al-Marzook, a senior member of Al Wifaq opposition block said the "atmosphere for dialogue," led by Bahrain's crown prince "is not right."Security forces opened fire Friday on protesters for a second straight day of an uprising seeking to break the political grip of Bahrain's Sunni leaders.Al Wefaq's 18 Shiite lawmakers resigned from the 40-member parliament on Thursday after the army raided the protest encampment on Manama's Pearl Square, killing at least five people.Protesters are determined to take back the landmark square on Saturday.