Drop a test.

This test was leveraging a questionable behavior of Foundation. The input isn't
valid UTF-8, and there was a silent substitution going on, but trunk versions of
the compiler (and hence Foundation) properly fail to make a String out of the
input, so the force unwrap fails. So just drop the test as no longer valid.

Tests/SwiftProtobufTests/Test_FuzzTests.swift

@@ -128,29 +128,5 @@ class Test_FuzzTests: XCTestCase {
     assertTextFormatSucceeds("500<[google.protobuf.Any]<[google.protobuf.Any]<[google.protobuf.Any]<[google.protobuf.Any]<[google.protobuf.Any]<[google.protobuf.Any]<[google.protobuf.Any]<[google.protobuf.Any]<[google.protobuf.Any]<[google.protobuf.Any]<[google.protobuf.Any]<[google.protobuf.Any]<[google.protobuf.Any]<[google.protobuf.Any]<[google.protobuf.Any]<>>>>>>>>>>>>>>>>500<1:''\n2:''>")
 
     assertTextFormatFails("500<[fvwzz_exobuf.Aob/google.protobuf.Any]<[oeFgb/google.protobuf.Any]<[xlob/google.protobuf.Any]<[oeee0FFFFgb/google.protobuf.Any]<[oglob/google.protobuf.Any]<[oogoFFFFFFFFRFfuzz.tebool_extFFFFFFFBFFFFegleeeeeeeeeeeeeeeeeeemeeeeeeeeeeeneeeeeeeekeeeeFFFFFFFFFIFFFFFFFgb/google.protobuf.Any]<[oglob/google.protobuf.Any]<[oogoFFFFFFFFRFfuzz.tebool_extFFFFFFFBFFFFegleeeeeeeeeeeeeeeeeeemeeeeeeeeeeeneeeeeeeekeeeeFFFFFFFFFIFFFFFFFgb/google.protobuf.Any]<[oglob/google.protobuf.Any]<[oogoFFFFFFFFRFfuzz.tebool_extFFFFFFFBFFFFegleeeeeeeeeeeeeeeeeeemeeeeeeeeeeeneeeeeeeekeeeeFFFFFFFFFIFFFFFFFgb/google.protobuf.Any]<[oglob/google.protobuf.Any]<[oogoFFFFFFFFRFfuzz.tebool_extFFFFFFFBFFFFegleeeeeeeeeeeeeeeeeeemeeeeeeeeeeeneeeeeeeekeeeeFFFFFFFFFIFFFFFFFgb/google.protobuf.Any]<[oglob/google.protobuf.Any]<[oogoFFFFFFFFRFfuzz.tebool_extFFFFFFFBFFFFegleeeeeeeeeeeeeeeeeeemeeeeeeeeeeeneeeeeeeekeeeeFFFFFFFFFIFFFFFFFgb/google.protobuf.Any]<[oglob/google.protobuf.Any]<[oogoFFFFFFFFRFfuzz.tebool_extFFFFFFFBFFFFegleeeeeeeeeeeeeeeeeeemeeeeeeeeeeeneeeeeeeekeeeeFFFFFFFFFIFFFFFFFgb/google.protobuf.Any]<>>>>>>>>>>>>>>>>>500<1:''\n1:''\n1:''\n2:''\n1:'roto")
-
-    // FailCases/clusterfuzz-testcase-minimized-FuzzTextFormat_release-5109315292233728
-    // This decodes but fails when trying to generate the TextFormat again.
-    let bytes: [UInt8] = [
-      0x35, 0x30, 0x30, 0x3c, 0x31, 0x3a, 0x27, 0x67, 0x6f, 0x6f, 0x67, 0x6c,
-      0x65, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x62, 0x75, 0x66, 0x2e, 0x54,
-      0x69, 0x6d, 0x65, 0x73, 0x74, 0x61, 0x6d, 0x70, 0x27, 0x32, 0x3a, 0x27,
-      0x78, 0x74, 0x32, 0x31, 0x3a, 0x34, 0x37, 0x40, 0x6f, 0x67, 0x6c, 0x65,
-      0x2e, 0x6d, 0x15, 0x15, 0x15, 0x15, 0x15, 0x15, 0x15, 0x15, 0x15, 0x15,
-      0x15, 0x15, 0x15, 0x15, 0x15, 0x15, 0x15, 0x6d, 0x61, 0x70, 0x5f, 0x73,
-      0x69, 0x6e, 0x74, 0x33, 0x32, 0x5f, 0x73, 0x66, 0x69, 0x78, 0x65, 0x64,
-      0x36, 0x34, 0x3a, 0x15, 0x15, 0x15, 0x15, 0x30, 0x15, 0x15, 0x15, 0x15,
-      0x1d, 0x15, 0x15, 0x15, 0x15, 0x15, 0x15, 0x15, 0x15, 0x15, 0x58, 0x58,
-      0x58, 0x58, 0x58, 0x58, 0x58, 0x58, 0x58, 0x58, 0x58, 0x58, 0x58, 0x58,
-      0x58, 0x58, 0x58, 0x58, 0x58, 0x58, 0x58, 0x58, 0xa9, 0xa9, 0xa9, 0xa9,
-      0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9,
-      0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9,
-      0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9,
-      0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9,
-      0xa9, 0xa9, 0xa9, 0xa9, 0x31, 0x27, 0x3e,
-    ]
-    let str = String(data: Data(bytes), encoding: .utf8)!
-    let msg = try! Fuzz_Testing_Message(textFormatString: str, extensions: Fuzz_Testing_FuzzTesting_Extensions)
-    let _ = msg.textFormatString()
   }
 }