Remove ImageJ tool-specific plugin attributes

These include alwaysActive and activeInAppFrame. ImageJ can define them
using the new key/value pair extension mechanism instead.

Author: ctrueden

src/main/java/org/scijava/plugin/Plugin.java

@@ -170,16 +170,6 @@
 	/** Defines a function that is called to initialize the plugin in some way. */
 	String initializer() default "";
 
-	/** When true, tool has no button but rather is active all the time. */
-	boolean alwaysActive() default false;
-
-	/**
-	 * When true, tool receives events when the main ImageJ application frame is
-	 * active. When false, tool only receives events when a display window is
-	 * active.
-	 */
-	boolean activeInAppFrame() default false;
-
 	/**
 	 * A list of additional attributes which can be used to extend this annotation
 	 * beyond its built-in capabilities.

src/main/java/org/scijava/plugin/PluginInfo.java

@@ -229,19 +229,6 @@ public URL getIconURL() throws InstantiableException {
 		return loadClass().getResource(iconPath);
 	}
 
-	/** Gets whether tool is always active, rather than part of the toolbar. */
-	public boolean isAlwaysActive() {
-		return getAnnotation().alwaysActive();
-	}
-
-	/**
-	 * Gets whether the tool receives input events when the main application frame
-	 * has the focus.
-	 */
-	public boolean isActiveInAppFrame() {
-		return getAnnotation().activeInAppFrame();
-	}
-
 	// -- Object methods --
 
 	@Override