remove nistseedexpander header from HQC KEM

src/kem/hqc/hqc-rmrs-128/avx2/kem.c

@@ -1,7 +1,6 @@
 #include "api.h"
 #include "fips202.h"
 #include "hqc.h"
-#include "nistseedexpander.h"
 #include "parameters.h"
 #include "parsing.h"
 #include "randombytes.h"

src/kem/hqc/hqc-rmrs-128/clean/kem.c

@@ -1,7 +1,6 @@
 #include "api.h"
 #include "fips202.h"
 #include "hqc.h"
-#include "nistseedexpander.h"
 #include "parameters.h"
 #include "parsing.h"
 #include "randombytes.h"

src/kem/hqc/hqc-rmrs-192/avx2/kem.c

@@ -1,7 +1,6 @@
 #include "api.h"
 #include "fips202.h"
 #include "hqc.h"
-#include "nistseedexpander.h"
 #include "parameters.h"
 #include "parsing.h"
 #include "randombytes.h"

src/kem/hqc/hqc-rmrs-192/clean/kem.c

@@ -1,7 +1,6 @@
 #include "api.h"
 #include "fips202.h"
 #include "hqc.h"
-#include "nistseedexpander.h"
 #include "parameters.h"
 #include "parsing.h"
 #include "randombytes.h"

src/kem/hqc/hqc-rmrs-256/avx2/kem.c

@@ -1,7 +1,6 @@
 #include "api.h"
 #include "fips202.h"
 #include "hqc.h"
-#include "nistseedexpander.h"
 #include "parameters.h"
 #include "parsing.h"
 #include "randombytes.h"

src/kem/hqc/hqc-rmrs-256/clean/kem.c

@@ -1,7 +1,6 @@
 #include "api.h"
 #include "fips202.h"
 #include "hqc.h"
-#include "nistseedexpander.h"
 #include "parameters.h"
 #include "parsing.h"
 #include "randombytes.h"