Removed deprecated functionality

[mudit-01]

Removed Go 1.16 functionality of io/ioutil that is deprecated now.

Signed-off-by: mudit singh mudit.singh@india.nec.com

Description:

Testing done: Yes

Affected area:	Functional Area
New Functionality	[ ]
CI System	[ ]
CLI Tool	[ ]
Certificate Management	[ ]
Control Plane	[ ]
Demo	[ ]
Documentation	[ ]
Egress	[ ]
Ingress	[ ]
Install	[ ]
Networking	[ ]
Observability	[ ]
Performance	[ ]
SMI Policy	[ ]
Security	[ ]
Sidecar Injection	[ ]
Tests	[X ]
Upgrade	[ ]
Other	[ ]

Please answer the following questions with yes/no.

1. Does this change contain code from or inspired by another project?

   • Did you notify the maintainers and provide attribution?

2. Is this a breaking change?

3. Has documentation corresponding to this change been updated in the osm-docs repo (if applicable)?

[codecov-commenter]

Codecov Report

Merging #5296 (3ea8159) into main (d6a8817) will decrease coverage by 0.05%. The diff coverage is n/a.

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@@            Coverage Diff             @@
##             main    #5296      +/-   ##
==========================================
- Coverage   69.52%   69.47%   -0.05%     
==========================================
  Files         197      197              
  Lines       16071    16071              
==========================================
- Hits        11173    11165       -8     
- Misses       4841     4849       +8     
  Partials       57       57              

Flag	Coverage Δ
unittests	69.47% <ø> (-0.05%)	:arrow_down:

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see 2 files with indirect coverage changes

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[mudit-01]

Hi @keithmattix @jaellio the lint error is showing in the files that are unchanged by me is there any upgrade in the lint checker?

[mudit-01]

@trstringer @keithmattix @jaellio PTAL waiting for your review

[mudit-01]

Thanks! @keithmattix