[dynarmic] simplify assert macro usage (Only ASSERT/DEBUG_ASSERT are needed) (#2890)

- replace instances of ASSERT() with those where UNREACHABLE() should be used instead
- debuggers exist for a reason, you can't just debug an issue in dynarmic with just printing fancy text... you need to inspect values and alldat - while yes the asserts are "useful"; there is this beautiful thing called backtraces
- this will indirectly speedup the main decoder loop because of the added UNREACHABLE()
- this also removes a bunch of macros that were redundant
- the weird trick of [&](){}() is really funky, just do what everyone has done for the past 30 years and use a `do { <thing> } while(0)` :)

I may or may not have missed one assert or messed up my regex substitutions...

Signed-off-by: lizzie <lizzie@eden-emu.dev>

Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/2890
Reviewed-by: Shinmegumi <shinmegumi@eden-emu.dev>
Reviewed-by: Caio Oliveira <caiooliveirafarias0@gmail.com>
Reviewed-by: MaranBr <maranbr@eden-emu.dev>
Co-authored-by: lizzie <lizzie@eden-emu.dev>
Co-committed-by: lizzie <lizzie@eden-emu.dev>

docs/Deps.md

@@ -257,7 +257,7 @@ pacman -Syu --needed --noconfirm $packages
 <summary>HaikuOS</summary>
 
 ```sh
-pkgman install git cmake patch libfmt_devel nlohmann_json lz4_devel opus_devel boost1.89_devel vulkan_devel qt6_base_devel libsdl2_devel ffmpeg7_devel libx11_devel enet_devel catch2_devel quazip1_qt6_devel qt6_5compat_devel libusb1_devel libz_devel glslang mbedtls3
+pkgman install git cmake patch libfmt_devel nlohmann_json lz4_devel opus_devel boost1.89_devel vulkan_devel qt6_base_devel libsdl2_devel ffmpeg7_devel libx11_devel enet_devel catch2_devel quazip1_qt6_devel qt6_5compat_devel libusb1_devel libz_devel mbedtls3_devel glslang
 ```
 
 [Caveats](./Caveats.md#haikuos).