[RN] Simplify signing embedded iOS frameworks

ios/scripts/fixup-frameworks.sh

         rm "$FRAMEWORK_EXECUTABLE_PATH"
         mv "$FRAMEWORK_EXECUTABLE_PATH-merged" "$FRAMEWORK_EXECUTABLE_PATH"
     fi
+
+    echo "Code signing framework"
+    codesign \
+        --force --sign $EXPANDED_CODE_SIGN_IDENTITY \
+        --preserve-metadata=identifier,entitlements \
+        $FRAMEWORK
 done

ios/sdk/sdk.xcodeproj/project.pbxproj

 				TargetAttributes = {
 					0BD906E41EC0C00300C8C18E = {
 						CreatedOnToolsVersion = 8.3.2;
-						DevelopmentTeam = BQNXB4G3KQ;
 						ProvisioningStyle = Automatic;
 					};
 				};
 			isa = XCBuildConfiguration;
 			baseConfigurationReference = 98E09B5C73D9036B4ED252FC /* Pods-JitsiMeet.debug.xcconfig */;
 			buildSettings = {
-				CODE_SIGN_IDENTITY = "iPhone Developer";
+				CODE_SIGN_IDENTITY = "";
+				"CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "iPhone Developer";
 				DEFINES_MODULE = YES;
-				DEVELOPMENT_TEAM = BQNXB4G3KQ;
+				DEVELOPMENT_TEAM = "";
 				DYLIB_COMPATIBILITY_VERSION = 1;
 				DYLIB_CURRENT_VERSION = 1;
 				DYLIB_INSTALL_NAME_BASE = "@rpath";
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @loader_path/Frameworks";
 				PRODUCT_BUNDLE_IDENTIFIER = org.jitsi.JitsiMeetSDK.ios;
 				PRODUCT_NAME = "$(TARGET_NAME)";
+				PROVISIONING_PROFILE_SPECIFIER = "";
 				SKIP_INSTALL = YES;
 			};
 			name = Debug;
 			isa = XCBuildConfiguration;
 			baseConfigurationReference = 9C77CA3CC919B081F1A52982 /* Pods-JitsiMeet.release.xcconfig */;
 			buildSettings = {
-				CODE_SIGN_IDENTITY = "iPhone Developer";
+				CODE_SIGN_IDENTITY = "";
+				"CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "iPhone Developer";
 				DEFINES_MODULE = YES;
-				DEVELOPMENT_TEAM = BQNXB4G3KQ;
+				DEVELOPMENT_TEAM = "";
 				DYLIB_COMPATIBILITY_VERSION = 1;
 				DYLIB_CURRENT_VERSION = 1;
 				DYLIB_INSTALL_NAME_BASE = "@rpath";
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @loader_path/Frameworks";
 				PRODUCT_BUNDLE_IDENTIFIER = org.jitsi.JitsiMeetSDK.ios;
 				PRODUCT_NAME = "$(TARGET_NAME)";
+				PROVISIONING_PROFILE_SPECIFIER = "";
 				SKIP_INSTALL = YES;
 			};
 			name = Release;