libcap: fix static build

It supports static build with SHARED=no; the patch no longer applies.

Tested by building pkgsStatic.libcap.

pkgs/os-specific/linux/libcap/default.nix

@@ -14,8 +14,6 @@ stdenv.mkDerivation rec {
     sha256 = "sha256-TelZDuCah8KC1Vhzf/tbYXXMv9JtWArdEN9E0PBH9sI=";
   };
 
-  patches = lib.optional isStatic ./no-shared-lib.patch;
-
   outputs = [ "out" "dev" "lib" "man" "doc" ]
     ++ lib.optional usePam "pam";
 
@@ -31,7 +29,7 @@ stdenv.mkDerivation rec {
     "PAM_CAP=${if usePam then "yes" else "no"}"
     "BUILD_CC=$(CC_FOR_BUILD)"
     "CC:=$(CC)"
-  ];
+  ] ++ lib.optional isStatic "SHARED=no";
 
   prePatch = ''
     # use full path to bash

pkgs/os-specific/linux/libcap/no-shared-lib.patch

@@ -1,22 +0,0 @@
-diff --git a/libcap/Makefile b/libcap/Makefile
-index de6a28d..7e4d8ac 100644
---- a/libcap/Makefile
-+++ b/libcap/Makefile
-@@ -22,7 +22,7 @@ MAJLIBNAME=$(LIBNAME).$(VERSION)
- MINLIBNAME=$(MAJLIBNAME).$(MINOR)
- GPERF_OUTPUT = _caps_output.gperf
- 
--all: $(MINLIBNAME) $(STACAPLIBNAME) pcs $(STAPSXLIBNAME)
-+all: $(STACAPLIBNAME) pcs $(STAPSXLIBNAME)
- 
- pcs: libcap.pc libpsx.pc
- 
-@@ -93,7 +93,7 @@ cap_test: cap_test.c libcap.h
- test: cap_test
- 	./cap_test
- 
--install: install-static install-shared
-+install: install-static
- 
- install-static: install-static-cap install-static-psx
-