Revert "WebAssembly: add logging when I get a BinaryExpr"

Don't need the logging anymore

This reverts commit 8b8f31f.

Author: zhuowei

lib/MC/WasmObjectWriter.cpp

@@ -496,10 +496,6 @@ void WasmObjectWriter::recordRelocation(MCAssembler &Asm,
     const auto *Inner = dyn_cast<MCSymbolRefExpr>(Expr);
     if (Inner && Inner->getKind() == MCSymbolRefExpr::VK_WEAKREF)
       llvm_unreachable("weakref used in reloc not yet implemented");
-    if (!Inner) {
-      fprintf(stderr, "weak check failed to get an inner:\n");
-      Expr->dump();
-    }
   }
 
   // Put any constant offset in an addend. Offsets can be negative, and