a8d50a5541 Remove Push enum (Tobin C. Harding)
Pull request description:
The `Push` enum is only ever used to get access to one of its variants. Since it is a private type we can remove it entirely and just return `PushBytes` from the `last_pushdata` function.
Needs careful review but I believe the function name is still correctly descriptive.
This was discovered by of a new nightly clippy warning.
ACKs for top commit:
apoelstra:
ACK a8d50a5541 Looks good to me. The latest compiler complains about the currently-unused variants.
sanket1729:
ACK a8d50a5541.
Tree-SHA512: 7f96057b0f6f5673252578253ad4f1789793dbf6e917d3974274dedf942da27e6247946262a0669eb500d47987788fcca0e020ed16c0d672188e95ee31163242
8aab550e97