crypto: ccree - drop legacy ivgen support

ccree had a mechanism for IV generation which was not compatible
with the Linux seqiv or echainiv iv generator and was never used
in any of the upstream versions so drop all the code implementing it.

Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

drivers/crypto/ccree/cc_driver.h

@@ -126,15 +126,6 @@ struct cc_cpp_req {
 struct cc_crypto_req {
 	void (*user_cb)(struct device *dev, void *req, int err);
 	void *user_arg;
-	dma_addr_t ivgen_dma_addr[CC_MAX_IVGEN_DMA_ADDRESSES];
-	/* For the first 'ivgen_dma_addr_len' addresses of this array,
-	 * generated IV would be placed in it by send_request().
-	 * Same generated IV for all addresses!
-	 */
-	/* Amount of 'ivgen_dma_addr' elements to be filled. */
-	unsigned int ivgen_dma_addr_len;
-	/* The generated IV size required, 8/16 B allowed. */
-	unsigned int ivgen_size;
 	struct completion seq_compl; /* request completion */
 	struct cc_cpp_req cpp;
 };
@@ -158,7 +149,6 @@ struct cc_drvdata {
 	void *aead_handle;
 	void *request_mgr_handle;
 	void *fips_handle;
-	void *ivgen_handle;
 	void *sram_mgr_handle;
 	void *debugfs;
 	struct clk *clk;