Remove RISC-V info from zkASM's `Inst::print_with_state`

[mooori]

For some instructions print_with_state for zkASM prints data related to RISC-V lowerings, for example:

wasmtime/cranelift/codegen/src/isa/zkasm/inst/mod.rs

Lines 965 to 973 in f65f194

	&Inst::LoadConst32 { rd, imm } => {
	let rd = format_reg(rd.to_reg(), allocs);
	let mut buf = String::new();
	write!(&mut buf, "auipc {},0; ", rd).unwrap();
	write!(&mut buf, "ld {},12({}); ", rd, rd).unwrap();
	write!(&mut buf, "j {}; ", Inst::INSTRUCTION_SIZE + 4).unwrap();
	write!(&mut buf, ".4byte 0x{:x}", imm).unwrap();
	buf
	}