Removing dead code. (#950)

* Removing dead code.
* Removed CI requirements.

tools/ci_build/builds/builds_common.sh

@@ -17,8 +17,6 @@
 # Common Bash functions used by build scripts
 
 COLOR_NC='\033[0m'
-COLOR_BOLD='\033[1m'
-COLOR_LIGHT_GRAY='\033[0;37m'
 COLOR_GREEN='\033[0;32m'
 COLOR_RED='\033[0;31m'
 
@@ -32,16 +30,6 @@ die() {
     exit 1
 }
 
-num_cpus() {
-    # Get the number of CPUs
-    N_CPUS=$(grep -c ^processor /proc/cpuinfo)
-    if [[ -z ${N_CPUS} ]]; then
-        die "ERROR: Unable to determine the number of CPUs"
-    fi
-
-    echo ${N_CPUS}
-}
-
 # List files changed (i.e., added, or revised) from
 # the common ancestor of HEAD and the latest master branch.
 # Usage: get_changed_files_from_master_branch
@@ -63,19 +51,6 @@ get_bazel_files_to_check() {
     fi
 }
 
-# List python files changed that still exist,
-# i.e., not removed.
-# Usage: get_py_files_to_check [--incremental]
-get_py_files_to_check() {
-    if [[ "$1" == "--incremental" ]]; then
-        get_changed_files_from_master_branch -- '*.py'
-    elif [[ -z "$1" ]]; then
-        find . -name '*.py'
-    else
-        die "Found unsupported args: $@ for get_py_files_to_check."
-    fi
-}
-
 # List .h|.cc files changed that still exist,
 # i.e., not removed.
 # Usage: get_clang_files_to_check [--incremental]
@@ -88,46 +63,3 @@ get_clang_files_to_check() {
         die "Found unsupported args: $@ for get_clang_files_to_check."
     fi
 }
-
-realpath() {
-    # Get the real path of a file
-    # Usage: realpath <file_path>
-
-    if [[ $# != "1" ]]; then
-        die "realpath: incorrect usage"
-    fi
-
-    [[ $1 = /* ]] && echo "$1" || echo "$PWD/${1#./}"
-}
-
-to_lower () {
-    # Convert string to lower case.
-    # Usage: to_lower <string>
-
-    echo "$1" | tr '[:upper:]' '[:lower:]'
-}
-
-calc_elapsed_time() {
-    # Calculate elapsed time. Takes nanosecond format input of the kind output
-    # by date +'%s%N'
-    #
-    # Usage: calc_elapsed_time <START_TIME> <END_TIME>
-
-    if [[ $# != "2" ]]; then
-        die "calc_elapsed_time: incorrect usage"
-    fi
-
-    START_TIME=$1
-    END_TIME=$2
-
-    if [[ ${START_TIME} == *"N" ]]; then
-        # Nanosecond precision not available
-        START_TIME=$(echo ${START_TIME} | sed -e 's/N//g')
-        END_TIME=$(echo ${END_TIME} | sed -e 's/N//g')
-        ELAPSED="$(expr ${END_TIME} - ${START_TIME}) s"
-    else
-        ELAPSED="$(expr $(expr ${END_TIME} - ${START_TIME}) / 1000000) ms"
-    fi
-
-    echo ${ELAPSED}
-}

tools/ci_build/install/install_ci_dependency.sh

@@ -36,10 +36,6 @@ if [[ ! -d "tensorflow_addons" ]]; then
     exit 1
 fi
 
-# Install python dependencies:
-CI_REQUIREMENT="$SCRIPT_DIR/ci_requirements.txt"
-pip install ${QUIET_FLAG} -r ${CI_REQUIREMENT}
-
 # Download buildifier.
 wget ${QUIET_FLAG} https://github.com/bazelbuild/buildtools/releases/download/0.4.5/buildifier
 chmod +x buildifier