fix(module:drawer): ngOnDestory may called before onInit

[tonny008]

https://www.bennadel.com/blog/3356-ngoninit-may-not-get-called-before-ngondestroy-is-called-in-angular-4-4-6.htm

PR Checklist

Please check if your PR fulfills the following requirements:

• [x ] The commit message follows our guidelines: https://github.com/NG-ZORRO/ng-zorro-antd/blob/master/CONTRIBUTING.md#commit
• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)

PR Type

What kind of change does this PR introduce?

[x ] Bugfix
[ ] Feature
[ ] Code style update (formatting, local variables)
[ ] Refactoring (no functional changes, no api changes)
[ ] Build related changes
[ ] CI related changes
[ ] Documentation content changes
[ ] Application (the showcase website) / infrastructure changes
[ ] Other... Please describe:

What is the current behavior?

Issue Number: N/A

What is the new behavior?

Does this PR introduce a breaking change?

[ ] Yes
[ x] No

Other information

[hsuanxyz]

@tonny008
Hi thanks for your pr, please make sure your pr meet our guidelines.
https://github.com/NG-ZORRO/ng-zorro-antd/blob/master/CONTRIBUTING.md#commit

[codecov]

Codecov Report

Merging #2037 into master will decrease coverage by 0.01%.
The diff coverage is 50%.

@@            Coverage Diff             @@
##           master    #2037      +/-   ##
==========================================
- Coverage   95.85%   95.83%   -0.02%     
==========================================
  Files         485      485              
  Lines       12299    12300       +1     
  Branches     1671     1672       +1     
==========================================
- Hits        11789    11788       -1     
  Misses        150      150              
- Partials      360      362       +2

Impacted Files	Coverage Δ
components/drawer/nz-drawer.component.ts	97.6% <50%> (-0.59%)	⬇️
components/time-picker/time-holder.ts	95.91% <0%> (-1.03%)	⬇️

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