Revert "[nobug] update .gitignore for default output folders"

This reverts commit 9fa473cbc4dcf2772e6d164ce860c2fcd96a7bdf.

See bug 454097: EGit adds wrong .gitignore files/entries at project root
diff --git a/org.eclipse.debug.examples.memory/.gitignore b/org.eclipse.debug.examples.memory/.gitignore
deleted file mode 100644
index ae3c172..0000000
--- a/org.eclipse.debug.examples.memory/.gitignore
+++ /dev/null
@@ -1 +0,0 @@
-/bin/
diff --git a/org.eclipse.debug.examples.mixedmode/.gitignore b/org.eclipse.debug.examples.mixedmode/.gitignore
deleted file mode 100644
index ae3c172..0000000
--- a/org.eclipse.debug.examples.mixedmode/.gitignore
+++ /dev/null
@@ -1 +0,0 @@
-/bin/
diff --git a/org.eclipse.debug.tests/.gitignore b/org.eclipse.debug.tests/.gitignore
deleted file mode 100644
index ae3c172..0000000
--- a/org.eclipse.debug.tests/.gitignore
+++ /dev/null
@@ -1 +0,0 @@
-/bin/
diff --git a/org.eclipse.debug.ui/.gitignore b/org.eclipse.debug.ui/.gitignore
deleted file mode 100644
index ae3c172..0000000
--- a/org.eclipse.debug.ui/.gitignore
+++ /dev/null
@@ -1 +0,0 @@
-/bin/