Fix typos in launch prototypes

Also removed one completely unused message in that area.

Change-Id: Ieac6caa0baaabc3dfabe89cbaa8cf61091be1eba
Signed-off-by: Michael Keppler <Michael.Keppler@gmx.de>
diff --git a/org.eclipse.debug.ui/ui/org/eclipse/debug/internal/ui/launchConfigurations/LaunchConfigurationsMessages.java b/org.eclipse.debug.ui/ui/org/eclipse/debug/internal/ui/launchConfigurations/LaunchConfigurationsMessages.java
index 8bbe594..684d3ba 100644
--- a/org.eclipse.debug.ui/ui/org/eclipse/debug/internal/ui/launchConfigurations/LaunchConfigurationsMessages.java
+++ b/org.eclipse.debug.ui/ui/org/eclipse/debug/internal/ui/launchConfigurations/LaunchConfigurationsMessages.java
@@ -187,7 +187,6 @@
 	public static String PrototypeTab_Reset_Menu_Action_9;
 	public static String PrototypeTab_Explanation_Label_10;
 	public static String PrototypeTab_Explanation_Label_11;
-	public static String PrototypeTab_Explanation_Label_12;
 
 	public static String FavoritesDialog_1;
 	public static String FavoritesDialog_2;
diff --git a/org.eclipse.debug.ui/ui/org/eclipse/debug/internal/ui/launchConfigurations/LaunchConfigurationsMessages.properties b/org.eclipse.debug.ui/ui/org/eclipse/debug/internal/ui/launchConfigurations/LaunchConfigurationsMessages.properties
index 191672f..a5d736e 100644
--- a/org.eclipse.debug.ui/ui/org/eclipse/debug/internal/ui/launchConfigurations/LaunchConfigurationsMessages.properties
+++ b/org.eclipse.debug.ui/ui/org/eclipse/debug/internal/ui/launchConfigurations/LaunchConfigurationsMessages.properties
@@ -209,12 +209,11 @@
 PrototypeTab_Unlink_Button_Label_4=Unlin&k
 PrototypeTab_Select_Message_5=Please select a prototype
 PrototypeTab_Select_Empty_Message_6=You have to select a prototype
-PrototypeTab_Select_Prototype_Error_7=The prototype doesn't exists. Please select a valid prototype.
+PrototypeTab_Select_Prototype_Error_7=The prototype doesn't exist. Please select a valid prototype.
 PrototypeTab_Reset_Button_Label_8=&Reset
 PrototypeTab_Reset_Menu_Action_9=Reset selected checked attribute(s) with prototype value(s)
-PrototypeTab_Explanation_Label_10=- Values of checked attributes from prototype are applied on associated launch configurations.
-PrototypeTab_Explanation_Label_11=- Values of unchecked attributes from prototype are not applied on associated launch configurations.
-PrototypeTab_Explanation_Label_12=- Grayed state attributes have different values in the launch configuration and the associated prototype. 
+PrototypeTab_Explanation_Label_10=- Values of checked attributes from prototype are applied to associated launch configurations.
+PrototypeTab_Explanation_Label_11=- Values of unchecked attributes from prototype are not applied to associated launch configurations.
 
 FavoritesDialog_1=Organize {0} Favorites
 FavoritesDialog_2=Fa&vorites: