Deleting Swap input value retains the swap quotes

[srirambv]

Description

Deleting Swap input value retains the swap quotes

Steps to Reproduce

1. Select a token to swap
2. Select a value or select pre-set values
3. Wait for the swap quote to refresh
4. Delete the input value of Swap token, quote refreshes and is retained

Actual result:

Swap.Quotes.mp4

Expected result:

Not sure maybe remove quotes

Reproduces how often:

Easy

Brave version (brave://version info)

Brave	1.48.141 Chromium: 109.0.5414.119 (Official Build) beta (64-bit)
Revision	772095164c7d5d4e73160f858efed3b5e87eca83-refs/branch-heads/5414@{#1458}
OS	Windows 11 Version 22H2 (Build 22621.1105)

Version/Channel Information:

• Can you reproduce this issue with the current release? NA
• Can you reproduce this issue with the beta channel? Yes
• Can you reproduce this issue with the nightly channel? Yes

Other Additional Information:

• Does the issue resolve itself when disabling Brave Shields? NA
• Does the issue resolve itself when disabling Brave Rewards? NA
• Is the issue reproducible on the latest version of Chrome? NA

Miscellaneous Information:

cc: @onyb @jamesmudgett @minkyeongshin

[kjozwiak]

@srirambv as per the discussion via https://bravesoftware.slack.com/archives/CHGKGMHDJ/p1676524126357019, please create a follow up to this one. Labelling as QA/No and release-notes/exclude as it's still reproducible/not addressed by brave/brave-core#17239.

[srirambv]

Logged follow up issue #28618