Revert "KeyMint HAL: add curve 25519, bump version"

Revert "Bump keystore2 AIDL API version 1->2"

Revert "Advertise support of KeyMint V2"

Revert submission 1900930-version-bump

Reason for revert: Broken build on sc-qpr1-dev-plus-aosp, b/210450339
Reverted Changes:
I42a9b854f:keystore2: cope with new curve25519 enum
I167d568d6:Bump keystore2 AIDL API version 1->2
I3a16d072e:Advertise support of KeyMint V2
Ibf2325329:KeyMint HAL: add curve 25519, bump version

Change-Id: I78d4b07c41aa6bfeb367b56a58deeac6adb6ec46
diff --git a/security/keymint/aidl/vts/functional/KeyMintTest.cpp b/security/keymint/aidl/vts/functional/KeyMintTest.cpp
index fb9afe4..2a7911c 100644
--- a/security/keymint/aidl/vts/functional/KeyMintTest.cpp
+++ b/security/keymint/aidl/vts/functional/KeyMintTest.cpp
@@ -6566,7 +6566,7 @@
 
 typedef KeyMintAidlTestBase KeyAgreementTest;
 
-static int EcdhCurveToOpenSslCurveName(EcCurve curve) {
+int CurveToOpenSslCurveName(EcCurve curve) {
     switch (curve) {
         case EcCurve::P_224:
             return NID_secp224r1;
@@ -6576,8 +6576,6 @@
             return NID_secp384r1;
         case EcCurve::P_521:
             return NID_secp521r1;
-        case EcCurve::CURVE_25519:
-            return NID_X25519;
     }
 }
 
@@ -6599,7 +6597,7 @@
         for (auto localCurve : ValidCurves()) {
             // Generate EC key locally (with access to private key material)
             auto ecKey = EC_KEY_Ptr(EC_KEY_new());
-            int curveName = EcdhCurveToOpenSslCurveName(localCurve);
+            int curveName = CurveToOpenSslCurveName(localCurve);
             auto group = EC_GROUP_Ptr(EC_GROUP_new_by_curve_name(curveName));
             ASSERT_NE(group, nullptr);
             ASSERT_EQ(EC_KEY_set_group(ecKey.get(), group.get()), 1);