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/tests/use_case/kws/KWSHandlerTest.cc b/tests/use_case/kws/KWSHandlerTest.cc
index a7e75fb..3013611 100644
--- a/tests/use_case/kws/KWSHandlerTest.cc
+++ b/tests/use_case/kws/KWSHandlerTest.cc
@@ -44,12 +44,10 @@
 TEST_CASE("Inference by index")
 {
     hal_platform    platform;
-    data_acq_module data_acq;
-    data_psn_module data_psn;
     platform_timer  timer;
 
     /* Initialise the HAL and platform. */
-    hal_init(&platform, &data_acq, &data_psn, &timer);
+    hal_init(&platform, &timer);
     hal_platform_init(&platform);
 
     /* Model wrapper object. */
@@ -123,12 +121,10 @@
 TEST_CASE("Inference run all clips")
 {
     hal_platform    platform;
-    data_acq_module data_acq;
-    data_psn_module data_psn;
     platform_timer  timer;
 
     /* Initialise the HAL and platform. */
-    hal_init(&platform, &data_acq, &data_psn, &timer);
+    hal_init(&platform, &timer);
     hal_platform_init(&platform);
 
     /* Model wrapper object. */
@@ -161,12 +157,10 @@
 TEST_CASE("List all audio clips")
 {
     hal_platform    platform;
-    data_acq_module data_acq;
-    data_psn_module data_psn;
     platform_timer  timer;
 
     /* Initialise the HAL and platform. */
-    hal_init(&platform, &data_acq, &data_psn, &timer);
+    hal_init(&platform, &timer);
     hal_platform_init(&platform);
 
     /* Model wrapper object. */