Remove dead code. ERR_InputNotDirectory and ERR_CannotReadInputDir are not referenced

Author: alexeysemenyukoracle

src/jdk.jpackage/share/classes/jdk/jpackage/internal/resources/MainResources.properties

@@ -106,8 +106,6 @@ ERR_InvalidOption=Error: Invalid Option: [{0}]
 ERR_InvalidInstallerType=Error: Invalid or unsupported type: [{0}]
 ERR_BothMainJarAndModule=Error: Cannot have both --main-jar and --module Options
 ERR_NoEntryPoint=Error: creating application image requires --main-jar or --module Option
-ERR_InputNotDirectory=Error: Input directory specified is not a directory: {0}
-ERR_CannotReadInputDir=Error: No permission to read from input directory: {0}
 ERR_CannotParseOptions=Error: Processing @filename option: {0}
 ERR_MissingJLinkOptMacAppStore=Error: --mac-app-store argument requires a {0} option for --jlink-options argument
 ERR_MacAppStoreRuntimeBinExists=Error: Runtime image "{0}" should not contain "bin" folder. Use --strip-native-commands jlink option when generating runtime image used with --mac-app-store argument.