Revert "added sofa dummy files that will give an error message and hint to call ita_sofa_install"

This reverts commit 802e0226.

external_packages/sofa/itaFunctions/ita_sofa_install.m

@@ -18,7 +18,7 @@ function varargout = ita_sofa_install(varargin)
 % Author: Jan-Gerrit Richter -- Email: jri@akustik.rwth-aachen.de
 % Created:  04-Apr-2018
 
-if ~exist(['SOFAgetVersion.m'],'file')
+if ~exist(['SOFAstart.m'],'file')
     
     % the sofa link from github
     url = 'https://codeload.github.com/sofacoustics/API_MO/zip/master';
@@ -46,10 +46,7 @@ if ~exist(['SOFAgetVersion.m'],'file')
     % delete zip file
     fprintf('.\n')
     delete(fullfile(path,'sofa.zip'))
-    
-    % delete the dummy functions
-    fullpath = fileparts(which('SOFAstart.m'));
-    rmdir(fullpath,'s')
+   
     % add folder to path
     addpath(genpath([path(1:end-16) 'sofa/API_MO-master/API_MO']));
     ita_path_handling();

external_packages/sofa/itaFunctions/sofaDummys/SOFAdbPath.m

-function dbPath=SOFAdbPath(newPath)
-% DUMMY FILE
-error('SOFA IS NOT INSTALLED. CALL ITA_SOFA_INSTALL')
-  
\ No newline at end of file

external_packages/sofa/itaFunctions/sofaDummys/SOFAgetConventions.m

-function Obj = SOFAgetConventions(sofaconventions,flags)
-% DUMMY FILE
-error('SOFA IS NOT INSTALLED. CALL ITA_SOFA_INSTALL')
\ No newline at end of file

external_packages/sofa/itaFunctions/sofaDummys/SOFAload.m

-function Obj = SOFAload(fn,varargin)
-% DUMMY FILE
-error('SOFA IS NOT INSTALLED. CALL ITA_SOFA_INSTALL')
\ No newline at end of file

external_packages/sofa/itaFunctions/sofaDummys/SOFAsave.m

-function [Obj] = SOFAsave(filename,Obj,varargin)
-% DUMMY FILE
-error('SOFA IS NOT INSTALLED. CALL ITA_SOFA_INSTALL')
\ No newline at end of file

external_packages/sofa/itaFunctions/sofaDummys/SOFAstart.m

-function SOFAstart(flags)
-
-% DUMMY FILE
-error('SOFA IS NOT INSTALLED. CALL ITA_SOFA_INSTALL')