AUSTIN, Texas — A federal judge ordered Texas to suspend the most restrictive abortion law in the U.S., calling it an “offensive deprivation” of a constitutional right by banning most abortions in the nation’s second-most populous state since September.The order Wednesday by U.S. District Judge Robert Pitman is the first legal blow to the Texas law known as Senate Bill 8, which until now had withstood a wave of early challenges. In the weeks since the restrictions took effect, Texas abortion …