remove repetitive word

Signed-off-by: cuinix <915115094@qq.com>

contrib/epee/README.md

@@ -1 +1 @@
-epee -  is a small library of helpers, wrappers, tools and and so on, used to make my life easier. 
+epee -  is a small library of helpers, wrappers, tools and so on, used to make my life easier. 

external/db_drivers/liblmdb/mdb.c

@@ -4666,7 +4666,7 @@ enum mdb_fopen_type {
 
 /** Open an LMDB file.
  * @param[in] env	The LMDB environment.
- * @param[in,out] fname	Path from from #mdb_fname_init().  A suffix is
+ * @param[in,out] fname	Path from #mdb_fname_init().  A suffix is
  * appended if necessary to create the filename, without changing mn_len.
  * @param[in] which	Determines file type, access mode, etc.
  * @param[in] mode	The Unix permissions for the file, if we create it.
@@ -5681,7 +5681,7 @@ mdb_env_close0(MDB_env *env, int excl)
 		/* Clearing readers is done in this function because
 		 * me_txkey with its destructor must be disabled first.
 		 *
-		 * We skip the the reader mutex, so we touch only
+		 * We skip the reader mutex, so we touch only
 		 * data owned by this process (me_close_readers and
 		 * our readers), and clear each reader atomically.
 		 */

src/device/log.hpp

@@ -48,7 +48,7 @@ namespace hw {
      *     - All computation done by device are checked by default device.
      *       Required IODUMMYCRYPT_HWDEVICE or IONOCRYPT_HWDEVICE for fully working
      * #define IODUMMYCRYPT_HWDEVICE 1
-     *     - It assumes sensitive data encryption is is off on device side. a XOR with 0x55. This allow Ledger Class to make check on clear value
+     *     - It assumes sensitive data encryption is off on device side. a XOR with 0x55. This allow Ledger Class to make check on clear value
      * #define IONOCRYPT_HWDEVICE 1
      *     - It assumes sensitive data encryption is off on device side.
      */

src/multisig/multisig_account_kex_impl.cpp

@@ -395,7 +395,7 @@ namespace multisig
   *    - Sanitizes input msgs.
   *    - Require uniqueness in: 'exclude_pubkeys'.
   *    - Requires each input pubkey be recommended by 'num_recommendations = expected_round' msg signers.
-  *      - For a final multisig key to be truly 'M-of-N', each of the the private key's components must be
+  *      - For a final multisig key to be truly 'M-of-N', each of the private key's components must be
   *        shared by (N - M + 1) signers.
   *    - Requires that msgs are signed by only keys in 'signers'.
   *    - Requires that each key in 'signers' recommends [num_signers - 2 CHOOSE (expected_round - 1)] pubkeys.

tests/gtest/src/gtest.cc

@@ -1784,7 +1784,7 @@ std::string CodePointToUtf8(UInt32 code_point) {
   return str;
 }
 
-// The following two functions only make sense if the the system
+// The following two functions only make sense if the system
 // uses UTF-16 for wide string encoding. All supported systems
 // with 16 bit wchar_t (Windows, Cygwin, Symbian OS) do use UTF-16.