Consolidate tests to a single ParserTests target.

Modules/Parser/Tests/ParserTests/FeedParserTypeTests.swift

@@ -235,10 +235,3 @@ class FeedParserTypeTests: XCTestCase {
 		}
 	}
 }
-
-func parserData(_ filename: String, _ fileExtension: String, _ url: String) -> ParserData {
-	let filename = "Resources/\(filename)"
-	let path = Bundle.module.path(forResource: filename, ofType: fileExtension)!
-	let data = try! Data(contentsOf: URL(fileURLWithPath: path))
-	return ParserData(url: url, data: data)
-}

Modules/Parser/Tests/ParserTests/HTMLLinkTests.swift

@@ -41,10 +41,3 @@ class HTMLLinkTests: XCTestCase {
 		XCTAssertEqual(links.count, 131)
 	}
 }
-
-func parserData(_ filename: String, _ fileExtension: String, _ url: String) -> ParserData {
-	let filename = "Resources/\(filename)"
-	let path = Bundle.module.path(forResource: filename, ofType: fileExtension)!
-	let data = try! Data(contentsOf: URL(fileURLWithPath: path))
-	return ParserData(url: url, data: data)
-}