nix.patch: remove

No longer used and confused me for a second.

nix.patch

@@ -1,48 +0,0 @@
-diff --git a/mk/libraries.mk b/mk/libraries.mk
-index 6541775f329..5118b957608 100644
---- a/mk/libraries.mk
-+++ b/mk/libraries.mk
-@@ -130,7 +130,15 @@ define build-library
- 
-     $(1)_LDFLAGS_USE += $$($(1)_PATH) $$($(1)_LDFLAGS)
- 
--    $(1)_INSTALL_PATH := $$(libdir)/$$($(1)_NAME).a
-+    $(1)_INSTALL_PATH := $(DESTDIR)$$($(1)_INSTALL_DIR)/$$($(1)_NAME).a
-+
-+    $$(eval $$(call create-dir, $$($(1)_INSTALL_DIR)))
-+
-+    $$($(1)_INSTALL_PATH): $$($(1)_OBJS) | $(DESTDIR)$$($(1)_INSTALL_DIR)/
-+	+$$(trace-ld) $(LD) -Ur -o $$(_d)/$$($(1)_NAME).o $$^
-+	$$(trace-ar) $(AR) crs $$@ $$(_d)/$$($(1)_NAME).o
-+
-+    install: $$($(1)_INSTALL_PATH)
- 
-   endif
- 
-diff --git a/src/libstore/local.mk b/src/libstore/local.mk
-index 8f28bec6c1d..0d41e3c2cac 100644
---- a/src/libstore/local.mk
-+++ b/src/libstore/local.mk
-@@ -69,6 +69,13 @@ $(d)/build.cc:
- 
- clean-files += $(d)/schema.sql.gen.hh $(d)/ca-specific-schema.sql.gen.hh
- 
-+$(d)/nix-store.pc: $(d)/nix-store.pc.in
-+	$(trace-gen) rm -f $@ && ./config.status --quiet --file=$@
-+ifeq ($(BUILD_SHARED_LIBS), 1)
-+	sed -i 's|@LIBS_PRIVATE@||' $@
-+else
-+	sed -i 's|@LIBS_PRIVATE@|Libs.private: $(libstore_LDFLAGS) $(libstore_LDFLAGS_PROPAGATED) $(foreach lib, $(libstore_LIBS), $($(lib)_LDFLAGS))|' $@
-+endif
- $(eval $(call install-file-in, $(d)/nix-store.pc, $(libdir)/pkgconfig, 0644))
- 
- $(foreach i, $(wildcard src/libstore/builtins/*.hh), \
-diff --git a/src/libstore/nix-store.pc.in b/src/libstore/nix-store.pc.in
-index 6d67b1e0380..738991d307b 100644
---- a/src/libstore/nix-store.pc.in
-+++ b/src/libstore/nix-store.pc.in
-@@ -7,3 +7,4 @@ Description: Nix Package Manager
- Version: @PACKAGE_VERSION@
- Libs: -L${libdir} -lnixstore -lnixutil
- Cflags: -I${includedir}/nix -std=c++2a
-+@LIBS_PRIVATE@