Configurations/10-main.conf: remove solaris-x86-cc target.

Since vendor assembler can't assemble our modules with -KPIC flag,
it, assembly support, was not available as an option. But this
means lack of side-channel resistant code, which is incompatible
with security by todays standards.
Reviewed-by: NRich Salz <rsalz@openssl.org>

Configurations/10-main.conf

@@ -200,7 +200,7 @@ sub vms_info {
                                        threads("-pthread")),
         bn_ops           => "BN_LLONG",
         shared_cflag     => "-fPIC",
-        shared_ldflag    => "-shared",
+        shared_ldflag    => "-shared -static-libgcc",
     },
     "solaris64-x86_64-gcc" => {
         # -shared -static-libgcc might appear controversial, but modules
@@ -225,19 +225,18 @@ sub vms_info {
     },
 
 #### Solaris x86 with Sun C setups
-    "solaris-x86-cc" => {
-        inherit_from     => [ "solaris-common" ],
-        cc               => "cc",
-        cflags           => add_before(picker(default => "-xarch=generic -xstrconst -Xa -DL_ENDIAN",
-                                              debug   => "-g",
-                                              release => "-xO5 -xregs=frameptr -xdepend -xbuiltin"),
-                                       threads("-D_REENTRANT")),
-        lflags           => add(threads("-mt")),
-        ex_libs          => add(threads("-lpthread")),
-        bn_ops           => "BN_LLONG RC4_CHAR",
-        shared_cflag     => "-KPIC",
-        shared_ldflag    => "-G -dy -z text",
-    },
+    # There used to be solaris-x86-cc target, but it was removed,
+    # primarily because vendor assembler can't assemble our modules
+    # with -KPIC flag. As result it, assembly support, was not even
+    # available as option. But its lack means lack of side-channel
+    # resistant code, which is incompatible with security by todays
+    # standards. Fortunately gcc is readily available prepackaged
+    # option, which we can firmly point at...
+    #
+    # On related note, solaris64-x86_64-cc target won't compile code
+    # paths utilizing AVX and post-Haswell instruction extensions.
+    # Consider switching to solaris64-x86_64-gcc even here...
+    #
     "solaris64-x86_64-cc" => {
         inherit_from     => [ "solaris-common", asm("x86_64_asm") ],
         cc               => "cc",