message: [compiler] remove unused field: stdlib_address
  Closes:
  Approved by: sblackshear
diff: @@ -31,8 +31,6 @@ pub struct Compiler {
  pub address: AccountAddress,
  /// Skip stdlib dependencies if true.
  pub skip_stdlib_deps: bool,
  - /// The address to use for stdlib.
  - pub stdlib_address: AccountAddress,
  /// Extra dependencies to compile with.
  pub extra_deps: Vec<VerifiedModule>,
  