Remove PQsslpassword function

This partially reverts commit 4dc63552.

The information returned by the function can be obtained by calling
PQconninfo(), so the function is redundant.

doc/src/sgml/libpq.sgml

@@ -1867,24 +1867,6 @@ char *PQpass(const PGconn *conn);
      </listitem>
     </varlistentry>
 
-    <varlistentry id="libpq-PQsslpassword">
-     <term><function>PQsslpassword</function><indexterm><primary>PQsslpassword</primary></indexterm></term>
-
-     <listitem>
-      <para>
-       Returns the password for the SSL client key.
-<synopsis>
-char *PQsslpassword(const PGconn *conn);
-</synopsis>
-      </para>
-
-      <para>
-       <xref linkend="libpq-PQsslpassword"/> will return the SSL password specified
-       in the connection parameters.
-      </para>
-     </listitem>
-    </varlistentry>
-
     <varlistentry id="libpq-PQhost">
      <term><function>PQhost</function><indexterm><primary>PQhost</primary></indexterm></term>
 

src/interfaces/libpq/exports.txt

@@ -176,7 +176,6 @@ PQresultMemorySize        173
 PQhostaddr                174
 PQgssEncInUse             175
 PQgetgssctx               176
-PQsslpassword			  177
-PQsetSSLKeyPassHook		  178
-PQgetSSLKeyPassHook		  179
-PQdefaultSSLKeyPassHook	  180
+PQsetSSLKeyPassHook		  177
+PQgetSSLKeyPassHook		  178
+PQdefaultSSLKeyPassHook	  179

src/interfaces/libpq/fe-connect.c

@@ -6550,14 +6550,6 @@ PQport(const PGconn *conn)
 	return "";
 }
 
-char *
-PQsslpassword(const PGconn *conn)
-{
-	if (!conn)
-		return NULL;
-	return conn->sslpassword;
-}
-
 char *
 PQtty(const PGconn *conn)
 {

src/interfaces/libpq/libpq-fe.h

@@ -317,7 +317,6 @@ extern char *PQpass(const PGconn *conn);
 extern char *PQhost(const PGconn *conn);
 extern char *PQhostaddr(const PGconn *conn);
 extern char *PQport(const PGconn *conn);
-extern char *PQsslpassword(const PGconn *conn);
 extern char *PQtty(const PGconn *conn);
 extern char *PQoptions(const PGconn *conn);
 extern ConnStatusType PQstatus(const PGconn *conn);