remove NoAssignmentInExpressions linter warning

Author: sebsto

Tests/AWSLambdaEventsTests/DynamoDBTests.swift

@@ -222,7 +222,7 @@ class DynamoDBTests: XCTestCase {
     func testAttributeValueEmptyDecoding() {
         let json = "{\"haha\": 1}"
         XCTAssertThrowsError(
-            _ = try JSONDecoder().decode(DynamoDBEvent.AttributeValue.self, from: json.data(using: .utf8)!)
+            try JSONDecoder().decode(DynamoDBEvent.AttributeValue.self, from: json.data(using: .utf8)!)
         ) { error in
             guard case DecodingError.dataCorrupted = error else {
                 XCTFail("Unexpected error: \(String(describing: error))")

Tests/AWSLambdaEventsTests/Utils/Base64Tests.swift

@@ -55,13 +55,13 @@ class Base64Tests: XCTestCase {
     }
 
     func testBase64DecodingWithPoop() {
-        XCTAssertThrowsError(_ = try "💩".base64decoded()) { error in
+        XCTAssertThrowsError(try "💩".base64decoded()) { error in
             XCTAssertEqual(error as? Base64.DecodingError, .invalidCharacter(240))
         }
     }
 
     func testBase64DecodingWithInvalidLength() {
-        XCTAssertThrowsError(_ = try "AAAAA".base64decoded()) { error in
+        XCTAssertThrowsError(try "AAAAA".base64decoded()) { error in
             XCTAssertEqual(error as? Base64.DecodingError, .invalidLength)
         }
     }

Tests/AWSLambdaEventsTests/Utils/DateWrapperTests.swift

@@ -38,7 +38,7 @@ class DateWrapperTests: XCTestCase {
 
         let date = "2020-03-26T16:53:05"  // missing Z at end
         let json = #"{"date":"\#(date)"}"#
-        XCTAssertThrowsError(_ = try JSONDecoder().decode(TestEvent.self, from: json.data(using: .utf8)!)) { error in
+        XCTAssertThrowsError(try JSONDecoder().decode(TestEvent.self, from: json.data(using: .utf8)!)) { error in
             guard case DecodingError.dataCorrupted(let context) = error else {
                 XCTFail("Unexpected error: \(error)")
                 return
@@ -74,7 +74,7 @@ class DateWrapperTests: XCTestCase {
 
         let date = "2020-03-26T16:53:05Z"  // missing fractional seconds
         let json = #"{"date":"\#(date)"}"#
-        XCTAssertThrowsError(_ = try JSONDecoder().decode(TestEvent.self, from: json.data(using: .utf8)!)) { error in
+        XCTAssertThrowsError(try JSONDecoder().decode(TestEvent.self, from: json.data(using: .utf8)!)) { error in
             guard case DecodingError.dataCorrupted(let context) = error else {
                 XCTFail("Unexpected error: \(error)")
                 return
@@ -149,7 +149,7 @@ class DateWrapperTests: XCTestCase {
 
         let date = "Thu, 5 Apr 2012 23:47 +0200"  // missing seconds
         let json = #"{"date":"\#(date)"}"#
-        XCTAssertThrowsError(_ = try JSONDecoder().decode(TestEvent.self, from: json.data(using: .utf8)!)) { error in
+        XCTAssertThrowsError(try JSONDecoder().decode(TestEvent.self, from: json.data(using: .utf8)!)) { error in
             guard case DecodingError.dataCorrupted(let context) = error else {
                 XCTFail("Unexpected error: \(error)")
                 return