Cleaning up a comment

src/main.rs

@@ -19,7 +19,6 @@ unsafe extern "C" fn _enter() -> ! {
         ".option push", // pushes the current option stack
         ".option norelax", // disable relaxation so we can properly set `gp`
         // this instruction compiles to:
-        //   1:
         //     auipc gp, %pcrel_hi(_global_pointer)
         //     addi  gp, gp, %pcrel_lo(1b)
         // if relaxation were on, this would simply be `mv gp, gp` or `addi gp, gp, 0`