Remove short-named equinox.launcher.cocoa.macosx fragment and its usage

The full-named org.eclipse.equinox.launcher.cocoa.macosx.x86_64 fragment
exists for a long time already and users of the old short-named variant
should have had enough time to migrate.

And remove consideration of old development locations of the launcher
fragments.

features/org.eclipse.equinox.executable.feature/feature.xml

@@ -37,13 +37,6 @@
          arch="aarch64"
          version="0.0.0"/>
 
-   <plugin
-         id="org.eclipse.equinox.launcher.cocoa.macosx"
-         os="macosx"
-         ws="cocoa"
-         arch="aarch64"
-         version="0.0.0"/>
-
    <plugin
          id="org.eclipse.equinox.launcher.gtk.linux.ppc64le"
          os="linux"

pom.xml

@@ -213,7 +213,6 @@
 		    <module>bundles/org.eclipse.osgi/supplement</module>
 
 		    <module>bundles/org.eclipse.equinox.launcher</module>
-		    <module>bundles/org.eclipse.equinox.launcher.cocoa.macosx</module>
 		    <module>bundles/org.eclipse.equinox.launcher.cocoa.macosx.x86_64</module>
 		    <module>bundles/org.eclipse.equinox.launcher.cocoa.macosx.aarch64</module>
 		    <module>bundles/org.eclipse.equinox.launcher.gtk.linux.aarch64</module>