feat(lineage): delete lineage for the asset when deleting asset.

[anjali9791]

Closes: #185

[coveralls]

Pull Request Test Coverage Report for Build 4346424207

• 27 of 38 (71.05%) changed or added relevant lines in 3 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage decreased (-0.1%) to 86.039%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
core/asset/errors.go	0	5	0.0%
internal/store/postgres/lineage_repository.go	15	21	71.43%

Totals
Change from base Build 4321301974:	-0.1%
Covered Lines:	5035
Relevant Lines:	5852

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💛 - Coveralls

[kushsharma]

LGTM