[webcrypto] Delete some deprecated code.

public/platform/WebCryptoAlgorithmParams.h

Index: public/platform/WebCryptoAlgorithmParams.h
diff --git a/public/platform/WebCryptoAlgorithmParams.h b/public/platform/WebCryptoAlgorithmParams.h
index e2de88e19e48d722ffe32654699f2a0254664744..aaed0847aa4713c322de61a44451157b67448ba6 100644
--- a/public/platform/WebCryptoAlgorithmParams.h
+++ b/public/platform/WebCryptoAlgorithmParams.h
@@ -103,9 +103,6 @@ public:
     {
     }
 
-    // FIXME: Delete once no longer referenced by chromium.
-    unsigned short length() const { return m_lengthBits; }
-
     unsigned short lengthBits() const { return m_lengthBits; }
 
 private:
@@ -143,15 +140,6 @@ public:
 
     bool hasLengthBytes() const { return m_hasLengthBytes; }
 
-    // FIXME: Delete once no longer referenced by chromium.
-    bool getLength(unsigned& length) const
-    {
-        if (!m_hasLengthBytes)
-            return false;
-        length = m_optionalLengthBytes;
-        return true;
-    }
-
     unsigned optionalLengthBytes() const { return m_optionalLengthBytes; }
 
 private:
@@ -184,9 +172,6 @@ public:
     {
     }
 
-    // FIXME: Delete once no longer referenced by chromium.
-    unsigned modulusLength() const { return m_modulusLengthBits; }
-
     unsigned modulusLengthBits() const { return m_modulusLengthBits; }
     const WebVector<unsigned char>& publicExponent() const { return m_publicExponent; }