Remove use of ConfigSaveSection

Known front-ends have been modified to save configuration after plugin
initialization but before running the game. Now it is no longer
necessary for individual plugins to save their config.

Removing calls to ConfigSaveSection from within plugins makes the
mupen64plus-ui-console '--nosaveoptions' parameter work.

I was unable to test complete operation with this patch, due to:
#43

...but I was able to get past the plugin initialization phase, which
verifies that the code change works as desired.

module.c

@@ -64,7 +64,6 @@ static m64p_handle l_ConfigRsp;
 
 ptr_ConfigOpenSection      ConfigOpenSection = NULL;
 ptr_ConfigDeleteSection    ConfigDeleteSection = NULL;
-ptr_ConfigSaveSection      ConfigSaveSection = NULL;
 ptr_ConfigSetParameter     ConfigSetParameter = NULL;
 ptr_ConfigGetParameter     ConfigGetParameter = NULL;
 ptr_ConfigSetDefaultFloat  ConfigSetDefaultFloat;
@@ -105,7 +104,7 @@ EXPORT m64p_error CALL PluginStartup(m64p_dynlib_handle CoreLibHandle, void *Con
 {
     ptr_CoreGetAPIVersions CoreAPIVersionFunc;
 
-    int ConfigAPIVersion, DebugAPIVersion, VidextAPIVersion, bSaveConfig;
+    int ConfigAPIVersion, DebugAPIVersion, VidextAPIVersion;
     float fConfigParamsVersion = 0.0f;
 
     if (l_PluginInit)
@@ -134,7 +133,6 @@ EXPORT m64p_error CALL PluginStartup(m64p_dynlib_handle CoreLibHandle, void *Con
     /* Get the core config function pointers from the library handle */
     ConfigOpenSection = (ptr_ConfigOpenSection) osal_dynlib_getproc(CoreLibHandle, "ConfigOpenSection");
     ConfigDeleteSection = (ptr_ConfigDeleteSection) osal_dynlib_getproc(CoreLibHandle, "ConfigDeleteSection");
-    ConfigSaveSection = (ptr_ConfigSaveSection) osal_dynlib_getproc(CoreLibHandle, "ConfigSaveSection");
     ConfigSetParameter = (ptr_ConfigSetParameter) osal_dynlib_getproc(CoreLibHandle, "ConfigSetParameter");
     ConfigGetParameter = (ptr_ConfigGetParameter) osal_dynlib_getproc(CoreLibHandle, "ConfigGetParameter");
     ConfigSetDefaultFloat = (ptr_ConfigSetDefaultFloat) osal_dynlib_getproc(CoreLibHandle, "ConfigSetDefaultFloat");
@@ -146,10 +144,6 @@ EXPORT m64p_error CALL PluginStartup(m64p_dynlib_handle CoreLibHandle, void *Con
         !ConfigSetDefaultBool || !ConfigGetParamBool || !ConfigSetDefaultFloat)
         return M64ERR_INCOMPATIBLE;
 
-    /* ConfigSaveSection was added in Config API v2.1.0 */
-    if (ConfigAPIVersion >= 0x020100 && !ConfigSaveSection)
-        return M64ERR_INCOMPATIBLE;
-
     /* get a configuration section handle */
     if (ConfigOpenSection("rsp-cxd4", &l_ConfigRsp) != M64ERR_SUCCESS)
     {
@@ -158,28 +152,24 @@ EXPORT m64p_error CALL PluginStartup(m64p_dynlib_handle CoreLibHandle, void *Con
     }
 
     /* check the section version number */
-    bSaveConfig = 0;
     if (ConfigGetParameter(l_ConfigRsp, "Version", M64TYPE_FLOAT, &fConfigParamsVersion, sizeof(float)) != M64ERR_SUCCESS)
     {
         DebugMessage(M64MSG_WARNING, "No version number in 'rsp-cxd4' config section. Setting defaults.");
         ConfigDeleteSection("rsp-cxd4");
         ConfigOpenSection("rsp-cxd4", &l_ConfigRsp);
-        bSaveConfig = 1;
     }
     else if (((int) fConfigParamsVersion) != ((int) CONFIG_PARAM_VERSION))
     {
         DebugMessage(M64MSG_WARNING, "Incompatible version %.2f in 'rsp-cxd4' config section: current is %.2f. Setting defaults.", fConfigParamsVersion, (float) CONFIG_PARAM_VERSION);
         ConfigDeleteSection("rsp-cxd4");
         ConfigOpenSection("rsp-cxd4", &l_ConfigRsp);
-        bSaveConfig = 1;
     }
     else if ((CONFIG_PARAM_VERSION - fConfigParamsVersion) >= 0.0001f)
     {
         /* handle upgrades */
         float fVersion = CONFIG_PARAM_VERSION;
         ConfigSetParameter(l_ConfigRsp, "Version", M64TYPE_FLOAT, &fVersion);
         DebugMessage(M64MSG_INFO, "Updating parameter set version in 'rsp-cxd4' config section to %.2f", fVersion);
-        bSaveConfig = 1;
     }
 
 #ifndef HLEVIDEO
@@ -194,9 +184,6 @@ EXPORT m64p_error CALL PluginStartup(m64p_dynlib_handle CoreLibHandle, void *Con
     ConfigSetDefaultBool(l_ConfigRsp, "WaitForCPUHost", 0, "Force CPU-RSP signals synchronization");
     ConfigSetDefaultBool(l_ConfigRsp, "SupportCPUSemaphoreLock", 0, "Support CPU-RSP semaphore lock");
 
-    if (bSaveConfig && ConfigAPIVersion >= 0x020100)
-        ConfigSaveSection("rsp-cxd4");
-
     l_PluginInit = 1;
     return M64ERR_SUCCESS;
 }
@@ -674,4 +661,4 @@ DllMain(HINSTANCE hModule, DWORD ul_reason_for_call, LPVOID lpReserved)
     }
     return TRUE;
 }
-#endif
+#endif