[GITIGNORE] Clean up useless doublon

Ping kévin ;)

.gitignore

@@ -1,30 +1,23 @@
 *.icloud
 *.log
 target/
-target/*
 *.orig
-build
-build/*
-dist
-dist/*
-private
-private/*
+build/
+dist/
+private/
 release/
-release/*
 *.iml
 *.ipr
 *.iws
 *.iml
 .idea/
-.idea/*
 *~
 *.bak
 .directory
 .DS_Store
 *.history
 *.class
 .metadata/
-.metadata/*
 /*/gaml/
 /*/bin/
 msi.gama.ext/lib/