Federal authorities moved Friday to drop a racial discrimination lawsuit against the Sheetz convenience store chain, part of a broader effort by President Donald Trump’s administration to halt the use of a key tool for enforcing the country’s civil rights laws. The Equal Employment Opportunity Commission, the top federal agency for enforcing workers rights, filed a motion in a Pennsylvania federal court to dismiss the Sheetz lawsuit, citing Trump’s executive order directing federal agencies to deprioritize the use of “disparate impact liability” in civil rights enforcement. Disparate impact liability holds that policies that are neutral on their face can violate...