diff --git a/pkgs/development/compilers/llvm/3.5/libc++abi/darwin.patch b/pkgs/development/compilers/llvm/3.5/libc++abi/darwin.patch
deleted file mode 100644
index 53ea8783f7a8..000000000000
--- a/pkgs/development/compilers/llvm/3.5/libc++abi/darwin.patch
+++ /dev/null
@@ -1,17 +0,0 @@
-diff -ru -x '*~' libcxxabi-orig/lib/buildit libcxxabi/lib/buildit
---- libcxxabi-orig/lib/buildit	2014-09-18 16:54:14.000000000 +0200
-+++ libcxxabi/lib/buildit	2014-09-24 13:22:27.000000000 +0200
-@@ -51,12 +51,8 @@
-         -dynamiclib -nodefaultlibs  \
-         -current_version ${RC_ProjectSourceVersion} \
-         -compatibility_version 1 \
--        -install_name /usr/lib/libc++abi.dylib \
-+        -install_name $out/lib/libc++abi.dylib \
-         -lSystem"
--	if [ -f "${SDKROOT}/usr/local/lib/libCrashReporterClient.a" ]
--	then
--		LDSHARED_FLAGS+=" -lCrashReporterClient"
--	fi
-     ;;
-   *-*-mingw*)
-     # FIXME: removing libgcc and libsupc++ dependencies means porting libcxxrt and LLVM/compiler-rt
diff --git a/pkgs/development/compilers/llvm/3.5/libc++abi/no-stdc++.patch b/pkgs/development/compilers/llvm/3.5/libc++abi/no-stdc++.patch
deleted file mode 100644
index ddc9778a486e..000000000000
--- a/pkgs/development/compilers/llvm/3.5/libc++abi/no-stdc++.patch
+++ /dev/null
@@ -1,12 +0,0 @@
-diff -ru -x '*~' libcxxabi-orig/lib/buildit libcxxabi/lib/buildit
---- libcxxabi-orig/lib/buildit	2014-09-18 16:54:14.000000000 +0200
-+++ libcxxabi/lib/buildit	2014-09-24 13:22:27.000000000 +0200
-@@ -70,7 +66,7 @@
-     SOEXT=so
-     LDSHARED_FLAGS="-o libc++abi.so.1.0 \
-         -shared -nodefaultlibs -Wl,-soname,libc++abi.so.1 \
--        -lpthread -lrt -lc -lstdc++"
-+        -lpthread -lrt -lc"
-     ;;
- esac
-