Can you give some more details? I don't get any plugin listed, that is not installed (or active)
This is the list in Plugins menu:
Find broken files in project - ok
Reload EditorConfig - ok
BYO Games - ok
Cccc - Failed to launch cccc.
Code profiler - ok (I guess)
Code Statistics - ok
Copy String to clipboard - ok
CppCheck - Failed to launch CppCheck. Please set up the cppcheck executable etc.
Devpak updater/installer - The DevC++ devpak plugin is not configured yet, do you want to.. etc.
Header Fixup - ok
Koders query - ok (at least shows the finder window, didn't try further)
Library finder - ok
Project options manipulator - ok
Regular expressions testbed - ok
Source code formatter (AStyle) - works, but is only messing the formatting (I guess this is its "style")
Symbol table plugin - ok
Windows XP Look'n'feel - nothing happens, do I already have XP look and feel?
Note that I have never selected or managed plugins, these ones are in the Plugin menu by default.