warning if "noUnusedParameters": true

[trueflywood]

If we use "noUnusedParameters" option for tsc , the compiler produces errors:

[default] /node_modules/ngx-uploader/src/directives/ng-file-drop.ts:66:15
'changes' is declared but never used.
[default] /node_modules/ngx-uploader/src/directives/ng-file-drop.ts:131:21
'event' is declared but never used.
[default] /node_modules/ngx-uploader/src/directives/ng-file-drop.ts:136:22
'event' is declared but never used.
[default] /node_modules/ngx-uploader/src/directives/ng-file-select.ts:35:15
'changes' is declared but never used.
[default] /node_modules/ngx-uploader/src/services/ngx-uploader.ts:85:27
'e' is declared but never used.
[default] /node_modules/ngx-uploader/src/services/ngx-uploader.ts:90:27
'e' is declared but never used.
[default] /node_modules/ngx-uploader/src/services/ngx-uploader.ts:131:41
'i' is declared but never used.

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