upgrade to JUCE 5.4.3. Remove (probably) unused JUCE modules. Remove VST2 target (it's been end-of-life'd by Steinberg and by JUCE)

modules/juce_audio_formats/codecs/juce_FlacAudioFormat.cpp

@@ -117,6 +117,9 @@ namespace FlacNamespace
   #pragma clang diagnostic ignored "-Wconversion"
   #pragma clang diagnostic ignored "-Wshadow"
   #pragma clang diagnostic ignored "-Wdeprecated-register"
+  #if __has_warning("-Wzero-as-null-pointer-constant")
+   #pragma clang diagnostic ignored "-Wzero-as-null-pointer-constant"
+  #endif
  #endif
 
  #if JUCE_INTEL
@@ -201,7 +204,7 @@ public:
         }
     }
 
-    ~FlacReader()
+    ~FlacReader() override
     {
         FlacNamespace::FLAC__stream_decoder_delete (decoder);
     }
@@ -245,7 +248,7 @@ public:
             }
             else
             {
-                if (startSampleInFile >= (int) lengthInSamples)
+                if (startSampleInFile >= lengthInSamples)
                 {
                     samplesInReservoir = 0;
                 }
@@ -298,7 +301,7 @@ public:
                 auto* src = buffer[i];
                 int n = i;
 
-                while (src == 0 && n > 0)
+                while (src == nullptr && n > 0)
                     src = buffer [--n];
 
                 if (src != nullptr)
@@ -401,7 +404,7 @@ public:
                                                this) == FlacNamespace::FLAC__STREAM_ENCODER_INIT_STATUS_OK;
     }
 
-    ~FlacWriter()
+    ~FlacWriter() override
     {
         if (ok)
         {