Remove old excess precision link

ChangeLog:

	* README.md:

README.md

@@ -19,7 +19,6 @@ This repository holds the LuaLaTeX sources for my papers to the C++ committee.
 | [P2600](https://wg21.link/p2600) | [D2600](https://web-docs.gsi.de/~mkretz/D2600.pdf) | A minimal ADL restriction to avoid ill-formed template instantiation | EWG, needs revision         |
 | [P2614](https://wg21.link/p2614) |                                                    | Deprecate numeric_limits::has_denorm      | accepted for C++23    |
 | [P2772](https://wg21.link/p2772) |                                                    | `std::integral_constant` literals do not suffice — `constexpr_t`? | superseded by P2781 |
-| TODO                             | [DFPEP](https://web-docs.gsi.de/~mkretz/DFPEP.pdf) | Floating-Point Excess Precision           | drafting                   |
 | [P3275](https://wg21.link/p3275) | [D3275](https://web-docs.gsi.de/~mkretz/D3275.pdf) | Replace simd operator[] with getter and setter functions --- or not | accepted: applied to P1928R10 |
 | [P3287](https://wg21.link/p3287) | [D3287](https://web-docs.gsi.de/~mkretz/D3287.pdf) | Exploration of namespaces for std::simd   | LEWG (encouragement)       |
 | [P3319](https://wg21.link/p3319) | [D3319](https://web-docs.gsi.de/~mkretz/D3319.pdf) | Add an iota object for simd (and more)    | LEWG                       |