MLECO-3096: Removing data_acq and data_psn

Further to the HAL refactoring done in previous commits,
this CR simpifies HAL by removing data_acq and data_psn
"modules". The associated function pointers have been
removed.

Change-Id: I04c194c08dfe0aff98ce4e0f0f056bac254c137d
Signed-off-by: Kshitij Sisodia <kshitij.sisodia@arm.com>
diff --git a/source/use_case/vww/src/MainLoop.cc b/source/use_case/vww/src/MainLoop.cc
index 30e85bf..03d6196 100644
--- a/source/use_case/vww/src/MainLoop.cc
+++ b/source/use_case/vww/src/MainLoop.cc
@@ -58,7 +58,7 @@
         int menuOption = common::MENU_OPT_RUN_INF_NEXT;
         if (bUseMenu) { 
             DisplayCommonMenu();
-            menuOption = arm::app::ReadUserInputAsInt(platform);
+            menuOption = arm::app::ReadUserInputAsInt();
             printf("\n");
         }
 
@@ -69,7 +69,7 @@
             case common::MENU_OPT_RUN_INF_CHOSEN: {
                 printf("    Enter the image index [0, %d]: ", NUMBER_OF_FILES-1);
                 fflush(stdout);
-                auto imgIndex = static_cast<uint32_t>(arm::app::ReadUserInputAsInt(platform));
+                auto imgIndex = static_cast<uint32_t>(arm::app::ReadUserInputAsInt());
                 executionSuccessful = ClassifyImageHandler(caseContext, imgIndex, false);
                 break;
             }