Remove legacy CODE_SIGN_IDENTITY[sdk=iphoneos*] project settings

The project-level CODE_SIGN_IDENTITY[sdk=iphoneos*]="iPhone Developer"
(Xcode 8 era) was overriding the command-line CODE_SIGN_IDENTITY since
sdk-specific settings take precedence over general ones. This caused
xcodebuild to look for "iOS Distribution" instead of "Apple Distribution".

Also removed the broken conditional syntax from the workflow command
line — shell mangles the brackets in CODE_SIGN_IDENTITY[sdk=iphoneos*].

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: PGMacDesign2

.github/workflows/deploy-testflight.yml

@@ -118,7 +118,6 @@ jobs:
             -destination "generic/platform=iOS" \
             CODE_SIGN_STYLE=Manual \
             CODE_SIGN_IDENTITY="Apple Distribution" \
-            "CODE_SIGN_IDENTITY[sdk=iphoneos*]=Apple Distribution" \
             PROVISIONING_PROFILE_SPECIFIER="" \
             PROVISIONING_PROFILE="$PROFILE_UUID" \
             DEVELOPMENT_TEAM="$APPLE_TEAM_ID"

ios/Runner.xcodeproj/project.pbxproj

@@ -460,7 +460,7 @@
 				CLANG_WARN_SUSPICIOUS_MOVE = YES;
 				CLANG_WARN_UNREACHABLE_CODE = YES;
 				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
-				"CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "iPhone Developer";
+	
 				COPY_PHASE_STRIP = NO;
 				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
 				ENABLE_NS_ASSERTIONS = NO;
@@ -595,7 +595,7 @@
 				CLANG_WARN_SUSPICIOUS_MOVE = YES;
 				CLANG_WARN_UNREACHABLE_CODE = YES;
 				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
-				"CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "iPhone Developer";
+	
 				COPY_PHASE_STRIP = NO;
 				DEBUG_INFORMATION_FORMAT = dwarf;
 				ENABLE_STRICT_OBJC_MSGSEND = YES;
@@ -652,7 +652,7 @@
 				CLANG_WARN_SUSPICIOUS_MOVE = YES;
 				CLANG_WARN_UNREACHABLE_CODE = YES;
 				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
-				"CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "iPhone Developer";
+	
 				COPY_PHASE_STRIP = NO;
 				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
 				ENABLE_NS_ASSERTIONS = NO;