Remove strip operation in CI

[Dengjianping]

We can remove strip command in CI due to this pr stablized: rust-lang/cargo#10088
But not sure rust 1.58 will include this feature.

[Dengjianping]

It will happen to 1.59.
https://github.com/rust-lang/rust/blob/master/RELEASES.md#version-1580-2022-01-13

[Dengjianping]

It will happen in 1.59.
This flag can be only used as rustc flag, not available in cargo.profile.

[profile.release]
codegen-units = 1
lto = true
opt-level = 3
panic = "unwind"
strip = "symbols"