Remove special-casing of the release branch

- I think we used to have such a branch in the past, but we no longer do and it being handled specially would be completely unexpected by everyone at this point.

Author: cameel

.circleci/config.yml

@@ -187,7 +187,7 @@ commands:
       - run:
           name: Store commit hash and prerelease
           command: |
-            if [[ $CIRCLE_BRANCH == release || -n $CIRCLE_TAG ]]; then
+            if [[ -n $CIRCLE_TAG ]]; then
               echo -n > prerelease.txt;
             else
               date -u +"nightly.%Y.%-m.%-d" > prerelease.txt;

scripts/ci/build.sh

@@ -9,7 +9,7 @@ prerelease_source="${1:-ci}"
 
 cd "${ROOTDIR}"
 
-if [[ $CIRCLE_BRANCH == release || -n $CIRCLE_TAG || -n $FORCE_RELEASE ]]; then
+if [[ -n $CIRCLE_TAG || -n $FORCE_RELEASE ]]; then
     echo -n > prerelease.txt
 else
     # Use last commit date rather than build date to avoid ending up with builds for
@@ -25,7 +25,7 @@ fi
 mkdir -p build
 cd build
 
-[[ -n $COVERAGE && $CIRCLE_BRANCH != release && -z $CIRCLE_TAG ]] && CMAKE_OPTIONS="$CMAKE_OPTIONS -DCOVERAGE=ON"
+[[ -n $COVERAGE && -z $CIRCLE_TAG ]] && CMAKE_OPTIONS="$CMAKE_OPTIONS -DCOVERAGE=ON"
 
 # shellcheck disable=SC2086
 cmake .. -DCMAKE_BUILD_TYPE="${CMAKE_BUILD_TYPE:-Release}" $CMAKE_OPTIONS

scripts/ci/build_emscripten.sh

@@ -45,7 +45,7 @@ function build() {
 
     cd "${ROOT_DIR}"
 
-    if [[ $CIRCLE_BRANCH == release || -n $CIRCLE_TAG || -n $FORCE_RELEASE || $(git tag --points-at HEAD 2> /dev/null) == v* ]]; then
+    if [[ -n $CIRCLE_TAG || -n $FORCE_RELEASE || $(git tag --points-at HEAD 2> /dev/null) == v* ]]; then
         echo -n > prerelease.txt
     else
         # Use last commit date rather than build date to avoid ending up with builds for