remove unnecessary example; explore iOS 14 dynamic type and font picker breakage

Author: mattneub

bk2ch08p445deleteTableRows/ch21p740deleteTableRows.xcodeproj/project.pbxproj

@@ -477,6 +477,7 @@
 				PRODUCT_NAME = ch21p740deleteTableRows;
 				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
 				SWIFT_VERSION = 5.0;
+				TARGETED_DEVICE_FAMILY = "1,2";
 				WRAPPER_EXTENSION = app;
 			};
 			name = Debug;
@@ -498,6 +499,7 @@
 				PRODUCT_BUNDLE_IDENTIFIER = "com.neuburg.matt.${PRODUCT_NAME:rfc1034identifier}";
 				PRODUCT_NAME = ch21p740deleteTableRows;
 				SWIFT_VERSION = 5.0;
+				TARGETED_DEVICE_FAMILY = "1,2";
 				WRAPPER_EXTENSION = app;
 			};
 			name = Release;