ldc: Remove old workarounds

Closes #48566.

Signed-off-by: FX Coudert <fxcoudert@gmail.com>

Formula/ldc.rb

@@ -3,6 +3,7 @@ class Ldc < Formula
   homepage "https://wiki.dlang.org/LDC"
   url "https://github.com/ldc-developers/ldc/releases/download/v1.19.0/ldc-1.19.0-src.tar.gz"
   sha256 "c7056c10ab841762b84ae9ea6ab083b131924d683e1e0d8a18aa496c537213ae"
+  revision 1
   head "https://github.com/ldc-developers/ldc.git", :shallow => false
 
   bottle do
@@ -30,11 +31,7 @@ class Ldc < Formula
         -DLLVM_ROOT_DIR=#{Formula["llvm"].opt_prefix}
         -DINCLUDE_INSTALL_DIR=#{include}/dlang/ldc
         -DD_COMPILER=#{buildpath}/ldc-bootstrap/bin/ldmd2
-        -DLDC_WITH_LLD=OFF
-        -DRT_ARCHIVE_WITH_LDC=OFF
       ]
-      # LDC_WITH_LLD see https://github.com/ldc-developers/ldc/releases/tag/v1.4.0 Known issues
-      # RT_ARCHIVE_WITH_LDC see https://github.com/ldc-developers/ldc/issues/2350
 
       system "cmake", "..", *args
       system "make"