message: Remove unused imports, resolves warning.
diff: use crate::error::ObjectError;
  use object::write::{Object, Relocation, StandardSection, Symbol as ObjSymbol, SymbolSection};
  use object::{RelocationEncoding, RelocationKind, SymbolFlags, SymbolKind, SymbolScope};
  -use wasm_common::{FunctionIndex, LocalFunctionIndex, SignatureIndex};
  use wasmer_compiler::{
  Architecture, BinaryFormat, Compilation, CustomSectionProtection, Endianness, RelocationTarget,
  - SectionIndex, Symbol, SymbolRegistry, Triple,
  + Symbol, SymbolRegistry, Triple,
  };
  /// Create an object for a given target `Triple`.
  