Remove maxsize diagnostic

Motivation:
1. It tests for issue that only affects *EOLed* Windows 1903/1909
2. It doesn't work properly on Windows Server newer than 1909
because it tries to run incompatible container with process isolation
3. There's already check in `WindowsUtils.isBlacklistedWindowsHost`
that will prevent user from running ue4-docker on affected systems

resolves #263

ue4docker/diagnostics/__init__.py

@@ -1,5 +1,4 @@
 from .diagnostic_all import allDiagnostics
 from .diagnostic_8gig import diagnostic8Gig
 from .diagnostic_20gig import diagnostic20Gig
-from .diagnostic_maxsize import diagnosticMaxSize
 from .diagnostic_network import diagnosticNetwork

ue4docker/diagnostics/diagnostic_all.py

@@ -1,7 +1,6 @@
 from .base import DiagnosticBase
 from .diagnostic_8gig import diagnostic8Gig
 from .diagnostic_20gig import diagnostic20Gig
-from .diagnostic_maxsize import diagnosticMaxSize
 from .diagnostic_network import diagnosticNetwork
 
 
@@ -28,7 +27,6 @@ def run(self, logger, args=[]):
         diagnostics = [
             diagnostic8Gig(),
             diagnostic20Gig(),
-            diagnosticMaxSize(),
             diagnosticNetwork(),
         ]
         for index, diagnostic in enumerate(diagnostics):

ue4docker/diagnostics_cmd.py

@@ -10,7 +10,6 @@ def diagnostics():
         "all": allDiagnostics(),
         "8gig": diagnostic8Gig(),
         "20gig": diagnostic20Gig(),
-        "maxsize": diagnosticMaxSize(),
         "network": diagnosticNetwork(),
     }