Revert "Increment iOS deployment target in Xcode"

This reverts commit 48b2290.

Author: arik-so

xcode/LDKFramework/LDK.xcodeproj/project.pbxproj

@@ -8834,7 +8834,7 @@
 				EXCLUDED_ARCHS = "";
 				INFOPLIST_FILE = "$(SRCROOT)/Framework/Info.plist";
 				INSTALL_PATH = "$(LOCAL_LIBRARY_DIR)/Frameworks";
-				IPHONEOS_DEPLOYMENT_TARGET = 14.0;
+				IPHONEOS_DEPLOYMENT_TARGET = 13.0;
 				LD_RUNPATH_SEARCH_PATHS = (
 					"$(inherited)",
 					"@executable_path/Frameworks",
@@ -8868,7 +8868,7 @@
 				"EXCLUDED_ARCHS[sdk=iphonesimulator*]" = arm64;
 				INFOPLIST_FILE = "$(SRCROOT)/Framework/Info.plist";
 				INSTALL_PATH = "$(LOCAL_LIBRARY_DIR)/Frameworks";
-				IPHONEOS_DEPLOYMENT_TARGET = 14.0;
+				IPHONEOS_DEPLOYMENT_TARGET = 13.0;
 				LD_RUNPATH_SEARCH_PATHS = (
 					"$(inherited)",
 					"@executable_path/Frameworks",