EaR: Update encryption methods to make 'cipherHeaderKey' optional

Description

Fix file formatting

Testing

fdbserver/include/fdbserver/IPager.h

@@ -496,9 +496,7 @@ class ArenaPage : public ReferenceCounted<ArenaPage>, public FastAllocated<Arena
 	}
 
 	// Get the logical page buffer as a StringRef
-	Standalone<StringRef> asStringRef() const {
-		return Standalone<StringRef>(StringRef(buffer, logicalSize));
-	}
+	Standalone<StringRef> asStringRef() const { return Standalone<StringRef>(StringRef(buffer, logicalSize)); }
 
 	// Get a new ArenaPage that contains a copy of this page's data.
 	// extra is not copied to the returned page
@@ -626,14 +624,10 @@ class ArenaPage : public ReferenceCounted<ArenaPage>, public FastAllocated<Arena
 		}
 	}
 
-	const Arena& getArena() const {
-		return arena;
-	}
+	const Arena& getArena() const { return arena; }
 
 	// Returns true if the page's encoding type employs encryption
-	bool isEncrypted() const {
-		return isEncodingTypeEncrypted(getEncodingType());
-	}
+	bool isEncrypted() const { return isEncodingTypeEncrypted(getEncodingType()); }
 
 	// Return encryption domain id used. This method only use information from the encryptionKey.
 	// Caller should make sure encryption domain is in use.
@@ -647,9 +641,7 @@ class ArenaPage : public ReferenceCounted<ArenaPage>, public FastAllocated<Arena
 	}
 
 	// Return pointer to encoding header.
-	const void* getEncodingHeader() const {
-		return encodingHeaderAvailable ? page->getEncodingHeader() : nullptr;
-	}
+	const void* getEncodingHeader() const { return encodingHeaderAvailable ? page->getEncodingHeader() : nullptr; }
 
 private:
 	Arena arena;
@@ -676,9 +668,7 @@ class ArenaPage : public ReferenceCounted<ArenaPage>, public FastAllocated<Arena
 	int payloadSize;
 
 public:
-	EncodingType getEncodingType() const {
-		return page->encodingType;
-	}
+	EncodingType getEncodingType() const { return page->encodingType; }
 
 	PhysicalPageID getPhysicalPageID() const {
 		if (page->headerVersion == 1) {