Fetch API: Remove expectation files of request.js

third_party/WebKit/LayoutTests/http/tests/fetch/window/request-base-https-other-https-expected.txt

-This is a testharness.js-based test.
-Harness Error. harness_status.status = 1 , harness_status.message = 2 duplicate test names: "Request header test", "Request construction without body behavior regardning "bodyUsed""
-PASS Startup 
-PASS Request basic test 
-PASS Request default value test 
-PASS Request header test 
-PASS Request header test 
-PASS Request credentials test 
-PASS Request redirect test 
-PASS Request integrity test 
-PASS Request method name throw test 
-PASS Request mode throw test 
-PASS Request: valid method names and normalize test 
-PASS Request construction with URLs with credentials. 
-PASS Request construction without body behavior regardning "bodyUsed" 
-PASS Request construction without body behavior regardning "bodyUsed" 
-PASS Request construction failure should not set "bodyUsed" 
-PASS Request without RequestInit. 
-PASS Request with referrer=about:client. 
-PASS Request with no-referrer. 
-PASS Request with a url referrer 
-PASS Request with a url referrer containing user, pass, and so on 
-PASS Request with a url with another origin 
-PASS Request with an invalid referrer 
-PASS Request with a relative referrer 
-PASS Referrer policy settings 
-PASS Referrer policy should be cleared when any members are set 
-PASS Request of GET/HEAD method cannot have RequestInit body. 
-PASS Used => clone 
-PASS Test clone behavior with loading content from Request. 
-PASS Request body test 
-PASS Request throw error test 
-PASS MIME type for Blob 
-PASS MIME type for Blob with non-empty type 
-PASS MIME type for FormData 
-PASS MIME type for USVString 
-PASS Extract a MIME type with clone 
-PASS MIME type unchanged if headers are modified after Request() constructor 
-PASS Extract a MIME type (1) 
-PASS Credentials and body can both be set. 
-Harness: the test ran to completion.
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