remove specific string from text file using sed

Issue I have a file called a.txt that have, time="2022-08-02T15:07:53+05:30" level=info msg="\x1b[32m\x1b[1mPUBLIC\x1b[39m\x1b[0m http://some.s3-ap-southeast-2.amazonaws.com/ (\x1b[33mhttp://some.com\x1b[39m)" time="2022-08-02T15:07:53+05:30" level=info msg="\x1b[31m\x1b[1mFORBIDDEN\x1b[39m\x1b[0m http://some.s3.amazonaws.com (\x1b[33mhttp://some.com\x1b[39m)" time="2022-08-02T15:07:54+05:30"…

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