Remove raw instructions from ELF tests

tests/data/elf_lib_objdump_expected_diff

@@ -4,9 +4,9 @@
  
  0000000000000000 <f>:
  f():
-    0:	55                   	push   %rbp
-    1:	48 89 e5             	mov    %rsp,%rbp
--   4:	b8 2a 00 00 00       	mov    $0x2a,%eax
-+   4:	b8 ff ff ff ff       	mov    $0xffffffff,%eax
-    9:	5d                   	pop    %rbp
-    a:	c3                   	retq   
+    0:	push   %rbp
+    1:	mov    %rsp,%rbp
+-   4:	mov    $0x2a,%eax
++   4:	mov    $0xffffffff,%eax
+    9:	pop    %rbp
+    a:	retq   

tests/data/elf_obj_expected_diff

@@ -4,9 +4,9 @@
  
  0000000000000000 <f>:
  f():
-    0:	55                   	push   %rbp
-    1:	48 89 e5             	mov    %rsp,%rbp
--   4:	b8 2a 00 00 00       	mov    $0x2a,%eax
-+   4:	b8 ff ff ff ff       	mov    $0xffffffff,%eax
-    9:	5d                   	pop    %rbp
-    a:	c3                   	retq   
+    0:	push   %rbp
+    1:	mov    %rsp,%rbp
+-   4:	mov    $0x2a,%eax
++   4:	mov    $0xffffffff,%eax
+    9:	pop    %rbp
+    a:	retq   

tests/data/elfmix_disassembly_expected_diff

@@ -4,9 +4,9 @@
  
  0000000000000000 <return42_or_3>:
  return42_or_3():
-    0:	55                   	push   %rbp
-    1:	48 89 e5             	mov    %rsp,%rbp
--   4:	b8 2a 00 00 00       	mov    $0x2a,%eax
-+   4:	b8 2b 00 00 00       	mov    $0x2b,%eax
-    9:	5d                   	pop    %rbp
-    a:	c3                   	retq   
+    0:	push   %rbp
+    1:	mov    %rsp,%rbp
+-   4:	mov    $0x2a,%eax
++   4:	mov    $0x2b,%eax
+    9:	pop    %rbp
+    a:	retq   

tests/data/rlib_elf_expected_diff

 @@ -6,15 +6,15 @@
  0000000000000000 <__rust_reallocate>:
  __rust_reallocate():
-    0:	41 57                	push   %r15
-    2:	41 56                	push   %r14
-    4:	41 54                	push   %r12
-    6:	53                   	push   %rbx
-    7:	50                   	push   %rax
--   8:	48 89 d3             	mov    %rdx,%rbx
-+   8:	48 89 d1             	mov    %rdx,%rcx
-    b:	49 89 f7             	mov    %rsi,%r15
-    e:	49 89 fe             	mov    %rdi,%r14
-   11:	48 83 f9 10          	cmp    $0x10,%rcx
-   15:	77 16                	ja     2d <__rust_reallocate+0x2d>
-   17:	4c 89 f7             	mov    %r14,%rdi
-   1a:	48 89 de             	mov    %rbx,%rsi
-   1d:	48 83 c4 08          	add    $0x8,%rsp
+    0:	push   %r15
+    2:	push   %r14
+    4:	push   %r12
+    6:	push   %rbx
+    7:	push   %rax
+-   8:	mov    %rdx,%rbx
++   8:	mov    %rdx,%rcx
+    b:	mov    %rsi,%r15
+    e:	mov    %rdi,%r14
+   11:	cmp    $0x10,%rcx
+   15:	ja     2d <__rust_reallocate+0x2d>
+   17:	mov    %r14,%rdi
+   1a:	mov    %rbx,%rsi
+   1d:	add    $0x8,%rsp