nss: remove support for this TLS library

Closes #11459

tests/FILEFORMAT.md

@@ -439,7 +439,6 @@ Features testable here are:
 - `netrc`
 - `nghttpx`
 - `nghttpx-h3`
-- `NSS`
 - `NTLM`
 - `NTLM_WB`
 - `OpenSSL`

tests/libtest/Makefile.am

@@ -52,8 +52,8 @@ if USE_EXPLICIT_LIB_DEPS
 SUPPORTFILES_LIBS = $(top_builddir)/lib/libcurl.la @LIBCURL_LIBS@
 TESTUTIL_LIBS = $(top_builddir)/lib/libcurl.la @LIBCURL_LIBS@
 else
-SUPPORTFILES_LIBS = $(top_builddir)/lib/libcurl.la @CURL_NETWORK_LIBS@ @NSS_LIBS@
-TESTUTIL_LIBS = $(top_builddir)/lib/libcurl.la @CURL_NETWORK_AND_TIME_LIBS@ @NSS_LIBS@
+SUPPORTFILES_LIBS = $(top_builddir)/lib/libcurl.la @CURL_NETWORK_LIBS@
+TESTUTIL_LIBS = $(top_builddir)/lib/libcurl.la @CURL_NETWORK_AND_TIME_LIBS@
 endif
 
 # Dependencies (may need to be overridden)

tests/libtest/first.c

@@ -35,10 +35,6 @@
 #  include <fcntl.h> /* for setmode() */
 #endif
 
-#ifdef USE_NSS
-#include <nspr.h>
-#endif
-
 #ifdef CURLDEBUG
 #  define MEMDEBUG_NODEFINES
 #  include "memdebug.h"
@@ -177,12 +173,6 @@ int main(int argc, char **argv)
 
   result = test(URL);
 
-#ifdef USE_NSS
-  if(PR_Initialized())
-    /* prevent valgrind from reporting possibly lost memory (fd cache, ...) */
-    PR_Cleanup();
-#endif
-
 #ifdef WIN32
   /* flush buffers of all streams regardless of mode */
   _flushall();

tests/runtests.pl

@@ -541,10 +541,6 @@ sub checksystemfeatures {
            elsif ($libcurl =~ /\srustls-ffi\b/i) {
                $feature{"rustls"} = 1;
            }
-           elsif ($libcurl =~ /\snss\b/i) {
-               $feature{"NSS"} = 1;
-               $feature{"SSLpinning"} = 1;
-           }
            elsif ($libcurl =~ /\swolfssl\b/i) {
                $feature{"wolfssl"} = 1;
                $feature{"SSLpinning"} = 1;

tests/unit/Makefile.am

@@ -47,7 +47,7 @@ LIBS = $(BLANK_AT_MAKETIME)
 
 LDADD = $(top_builddir)/src/libcurltool.la   \
         $(top_builddir)/lib/libcurlu.la      \
-        @LDFLAGS@ @LIBCURL_LIBS@ @NSS_LIBS@
+        @LDFLAGS@ @LIBCURL_LIBS@
 
 AM_CPPFLAGS += -DCURL_STATICLIB -DUNITTESTS
 

tests/unit/unit1651.c

@@ -34,8 +34,8 @@ static void unit_stop(void)
 {
 
 }
-#if defined(USE_GSKIT) || defined(USE_NSS) || defined(USE_GNUTLS) ||    \
-  defined(USE_SCHANNEL) || defined(USE_SECTRANSP)
+#if defined(USE_GSKIT) || defined(USE_GNUTLS) || defined(USE_SCHANNEL) || \
+  defined(USE_SECTRANSP)
 
 /* cert captured from gdb when connecting to curl.se on October 26
    2018 */