left-align the y-tick labels | remove the current labels
Axes.set_yticklabels() method.
#code
fig, ax = plt.subplots(figsize=(4.5, 6))
ax.barh(top20_deathtoll['Country_Other'],
top20_deathtoll['Total_Deaths'],
height=0.45, color='#af0b1e')
ax.set_yticklabels([]) #an empty list removes the labels
#remove the current labels using for loop
country_names = top20_deathtoll['Country_Other']
for i, country in zip(range(20), country_names):
ax.text(x=-80000, y=i-0.15, s=country)