user: What is the c source code of the assembly code below:

```asm
<removeZero>:
  endbr64
  push   %rbx
  mov    %rdi,%rbx
  call   <stringlen@plt>
  mov    %eax,%ecx
  test   %eax,%eax
  jle    L77
  mov    %rbx,%rdx
  xor    %eax,%eax
  jmp    L13
  xchg   %ax,%ax
L6:
  add    $0x1,%eax
  add    $0x1,%rdx
  cmp    %eax,%ecx
  je     L146
L13:
  cmpb   $0x30,(%rdx)
  je     L6
L47:
  cmp    %eax,%ecx
  jl     L105
L146:
  mov    %ecx,%r8d
  movslq %eax,%rsi
  sub    %eax,%r8d
  cmp    $0x6,%r8d
  jbe    L121
  lea    0x1(%r8),%r9d
  cmp    $0xe,%r8d
  jbe    L135
  mov    %r9d,%edi
  add    %rbx,%rsi
  xor    %edx,%edx
  shr    $0x4,%edi
  shl    $0x4,%rdi
  nopl   0x0(%rax,%rax,1)
L38:
  movdqu (%rsi,%rdx,1),%xmm0
  movups %xmm0,(%rbx,%rdx,1)
  add    $0x10,%rdx
  cmp    %rdi,%rdx
  jne    L38
  mov    %r9d,%edx
  and    $0xfffffff0,%edx
  mov    %edx,%edi
  lea    (%rax,%rdx,1),%r10d
  cmp    %edx,%r9d
  je     L105
  sub    %edx,%r8d
  lea    0x1(%r8),%r9d
  cmp    $0x6,%r8d
  jbe    L67
L5:
  mov    (%rsi,%rdx,1),%rsi
  mov    %rsi,(%rbx,%rdx,1)
  mov    %r9d,%edx
  and    $0xfffffff8,%edx
  add    %edx,%r10d
  add    %edx,%edi
  cmp    %edx,%r9d
  je     L105
L67:
  movslq %r10d,%r10
  movslq %edi,%rdx
  movzbl (%rbx,%r10,1),%esi
  mov    %sil,(%rbx,%rdx,1)
  lea    0x1(%rdi),%edx
  lea    (%rax,%rdx,1),%esi
  cmp    %esi,%ecx
  jl     L105
  movslq %esi,%rsi
  movslq %edx,%rdx
  movzbl (%rbx,%rsi,1),%esi
  mov    %sil,(%rbx,%rdx,1)
  lea    0x2(%rdi),%edx
  lea    (%rax,%rdx,1),%esi
  cmp    %esi,%ecx
  jl     L105
  movslq %esi,%rsi
  movslq %edx,%rdx
  movzbl (%rbx,%rsi,1),%esi
  mov    %sil,(%rbx,%rdx,1)
  lea    0x3(%rdi),%edx
  lea    (%rax,%rdx,1),%esi
  cmp    %esi,%ecx
  jl     L105
  movslq %esi,%rsi
  movslq %edx,%rdx
  movzbl (%rbx,%rsi,1),%esi
  mov    %sil,(%rbx,%rdx,1)
  lea    0x4(%rdi),%edx
  lea    (%rax,%rdx,1),%esi
  cmp    %esi,%ecx
  jl     L105
  movslq %esi,%rsi
  movslq %edx,%rdx
  movzbl (%rbx,%rsi,1),%esi
  mov    %sil,(%rbx,%rdx,1)
  lea    0x5(%rdi),%edx
  lea    (%rax,%rdx,1),%esi
  cmp    %esi,%ecx
  jl     L105
  movslq %esi,%rsi
  add    $0x6,%edi
  movslq %edx,%rdx
  movzbl (%rbx,%rsi,1),%esi
  add    %edi,%eax
  mov    %sil,(%rbx,%rdx,1)
  cmp    %eax,%ecx
  jl     L105
  cltq
  movslq %edi,%rdi
  movzbl (%rbx,%rax,1),%eax
  mov    %al,(%rbx,%rdi,1)
L105:
  mov    %rbx,%rdi
  call   <stringlen@plt>
  test   %eax,%eax
  jne    L177
  mov    $0x30,%eax
  mov    %ax,(%rbx)
L177:
  pop    %rbx
  ret
  cs nopw 0x0(%rax,%rax,1)
L121:
  mov    %rbx,%rax
  lea    0x1(%rbx,%r8,1),%rcx
  nopl   0x0(%rax,%rax,1)
L205:
  movzbl (%rax,%rsi,1),%edx
  add    $0x1,%rax
  mov    %dl,-0x1(%rax)
  cmp    %rcx,%rax
  jne    L205
  jmp    L105
L135:
  mov    %eax,%r10d
  xor    %edx,%edx
  xor    %edi,%edi
  add    %rbx,%rsi
  jmp    L5
L77:
  xor    %eax,%eax
  jmp    L47
```

assistant: ```c
void removeZero(char *palavra) {
  int tamanho_palavra = stringlen(palavra);
  int i, j;
  for (i = 0; i < tamanho_palavra; i++) {
    if (palavra[i] != '0') {
      break;
    }
  }
  for (j = 0; j + i < tamanho_palavra + 1; j++) {
    palavra[j] = palavra[j + i];
  }
  if (stringlen(palavra) == 0) {
    palavra[0] = '0';
    palavra[1] = '\0';
  }
}
```