This inspection reports usages of

@SuppressWarning annotation, or
// noinspection line comment, or
/** noinspection */ JavaDoc comment

which can be safely removed because inspection they affect is no longer applicable in this context.

For example:

class C {
 // symbol is no more unused,
 //  but annotation is still around
 @SuppressWarning("UNUSED_SYMBOL")
 private boolean CONST = true;
 void f() {
    CONST = false;
 }