Remove semicolons after namespace declarations

Semicolons aren't needed after namespace declarations, and their
presence causes compiler errors with current clang master.

Change-Id: Id770c19b59bba461073dd579319f5900e59c5eef
Signed-off-by: Bernhard Rosenkränzer <Bernhard.Rosenkranzer@linaro.org>

libhidlcache/HidlMemoryCache.cpp

diff --git a/libhidlcache/HidlMemoryCache.cpp b/libhidlcache/HidlMemoryCache.cpp
index 6f9c25c..f8fbbc1 100644
--- a/libhidlcache/HidlMemoryCache.cpp
+++ b/libhidlcache/HidlMemoryCache.cpp
@@ -31,9 +31,9 @@
 class IMemoryDecorator : public virtual IMemory {
    public:
     IMemoryDecorator(sp<IMemory> heap) : mHeap(heap) {}
-    virtual ~IMemoryDecorator(){};
+    virtual ~IMemoryDecorator(){}
     Return<void> update() override { return mHeap->update(); }
-    Return<void> read() override { return mHeap->read(); };
+    Return<void> read() override { return mHeap->read(); }
     Return<void> updateRange(uint64_t start, uint64_t length) override {
         return mHeap->updateRange(start, length);
     }