gnucash maint: Remove the old XCode project. It is obsolete and CMake can create one

[Mike Alexander]

Updated	 via  https://github.com/Gnucash/gnucash/commit/aa961846 (commit)
	from  https://github.com/Gnucash/gnucash/commit/e91e84e7 (commit)



commit aa961846c6ee63bc2af302057a174604cd7f147d
Author: Mike Alexander <mta at umich.edu>
Date:   Fri Jan 17 01:32:42 2020 -0500

    Remove the old XCode project.  It is obsolete and CMake can create one



Summary of changes:
 gnucash.xcodeproj/project.pbxproj                  | 3102 --------------------
 .../project.xcworkspace/contents.xcworkspacedata   |    7 -
 .../xcshareddata/gnucash.xccheckout                |   41 -
 .../xcshareddata/xcschemes/Gnucash.xcscheme        |   97 -
 .../xcshareddata/xcschemes/Test Numeric.xcscheme   |   93 -
 5 files changed, 3340 deletions(-)
 delete mode 100644 gnucash.xcodeproj/project.pbxproj
 delete mode 100644 gnucash.xcodeproj/project.xcworkspace/contents.xcworkspacedata
 delete mode 100644 gnucash.xcodeproj/project.xcworkspace/xcshareddata/gnucash.xccheckout
 delete mode 100644 gnucash.xcodeproj/xcshareddata/xcschemes/Gnucash.xcscheme
 delete mode 100644 gnucash.xcodeproj/xcshareddata/xcschemes/Test Numeric.xcscheme