MLECO-3174: Minor refactoring to implemented use case APIS

Looks large but it is mainly just many small adjustments
Removed the inference runner code as it wasn't used
Fixes to doc strings
Consistent naming e.g. Asr/Kws instead of ASR/KWS

Signed-off-by: Richard Burton <richard.burton@arm.com>
Change-Id: I43b620b5c51d7910a29a63b509ac4d8a82c3a8fc
diff --git a/tests/use_case/asr/AsrFeaturesTests.cc b/tests/use_case/asr/AsrFeaturesTests.cc
index 6c23598..fe93c83 100644
--- a/tests/use_case/asr/AsrFeaturesTests.cc
+++ b/tests/use_case/asr/AsrFeaturesTests.cc
@@ -23,19 +23,19 @@
 #include <catch.hpp>
 #include <random>
 
-class TestPreprocess : public arm::app::ASRPreProcess {
+class TestPreprocess : public arm::app::AsrPreProcess {
 public:
 
     static bool ComputeDeltas(arm::app::Array2d<float>& mfcc,
                        arm::app::Array2d<float>& delta1,
                        arm::app::Array2d<float>& delta2)
     {
-        return ASRPreProcess::ComputeDeltas(mfcc, delta1, delta2);
+        return AsrPreProcess::ComputeDeltas(mfcc, delta1, delta2);
     }
 
     static void NormaliseVec(arm::app::Array2d<float>& vec)
     {
-        return ASRPreProcess::StandardizeVecF32(vec);
+        return AsrPreProcess::StandardizeVecF32(vec);
     }
 };